IMac3D Help v2.1Getting Help`Apple Menu`File Menu` New Model` Open Model` Close` Save and Save As` Revert` Page Setup and Print` Import and Export` Show Clipboard` Quit`Edit Menu` Undo` Cut/Copy/Paste` Clear` Duplicate` Select... Commands` Custom Tools` Regular Polygons and Geodesic Sphere` Edit Vertices` Get Info`Reshape Menu` Reshape Commands` Beveling and Rounding` Revolve Command`Text Menu` Style Commands` Rotation of Text` Scale Text Command` Text Formats Dialog Box`Fill & Pen Menus`Color Menu`Line Menu` Line Width` Endmarks` Dimensioning Lines`Layout Menu` Document View Commands` Grid` Rulers` Characteristics Box` Scaling` Using The Mac3D Camera` The Camera Window` Show Coordinates` Using the 'Look...' Commands` Using the 'Orbit to the...' Commands` Orthographic Projection` Lighting` Document Size` Hide Commands`Arrange Menu` View Commands` Rotate Command` Align Commands` Grouping Objects` Gluing/Ungluing` Exploding` Translucent/Opaque/Shade Commands` Removing Hidden Surfaces` Pattern and Color Shading`The Tool Switcher`Using the Depth Button`Using PICT Format`Plotting Mac3D Documents`Technical Support Info ~ Getting HelpTo learn about an item, select it and click the Help button. This Help facility is intended to assist you in using Mac3D. It is not a substitute for the Mac3D Owner’s Guide. More complete information on any of these subjects is available in the Owner’s Guide.~The Apple menu contains: – The About Mac3D dialog box, which displays the program version, number of objects, and number of bytes free for use. – This Help file. – The desk accessories installed on your system file. Note: Using too many desk accessories at once can be dangerous to any application, including the Finder. It is generally a good idea to refrain from using more than two or three desk accessories at once, especially if you are working with a large document, or if more than one document is open.~The File menu contains document handling commands related to saving, opening, closing, and printing the document, as well as quitting Mac3D.~The New Model command opens a new, untitled document.~The Open Model command brings up the Open dialog box, from which either Mac3D or PICT documents may be opened. For more information on PICT documents, see Using PICT Format.~The Close command closes the active window. If changes have been made to the active document, Mac3D will ask if you would like to save them.~The Save command places a copy of the active document onto disk, using the existing file name. If the document has not been named, the Save As dialog box will appear, asking you to specify the name and location to be assigned to the file. The Save As command brings up the Save As dialog box, which allows you to give the file a new name, change the format it is saved in (Mac3D or PICT), and change the location (disk/folder) where it is saved. For more information on PICT documents, see Using PICT Format.~The Revert command replaces the current document with the last saved version with the same name. Any unsaved changes will be lost.~The Page Setup command brings up a dialog box which allows you to specify how the individual document pages are printed. It controls the orientation of the page, the paper size, margins, and other page characteristics.~The Mac3D Import and Export commands are for using the Mac3D ASCII text file format. Import allows you to open a text file to bring in data. Export allows you to create a Mac3D ASCII text file. These files have a specific format that must be used. Details on this format are available in your Mac3D Owner’s Guide, or from Challenger Software.~The Show Clipboard command brings up a window that shows the current contents of the Macintosh Clipboard.~The Quit command will exit Mac3D. If there are unsaved changes in any active documents, a dialog box will alert you, to allow you to save changes.~The Edit menu contains the commands by which text and objects are edited or otherwise manipulated in Mac3D. ~The Undo command is dimmed (unavailable) except when using desk accessories.~The Cut command removes the selection from the window and places it in the Clipboard. Any other item in the Clipboard will be deleted.The Copy command places a copy of the selection in the Clipboard. Any other item in the Clipboard will be deleted.The Paste command makes a copy of the contents of the Clipboard and places it in the active window in one of three ways: – centered upon any selected objects – centered upon where the mouse was last clicked before choosing Paste – centered within the active window~The Clear command deletes the selection from the document. Once cleared, an object cannot be retrieved.~The Duplicate command makes an exact copy of the object and places the copy to the lower right of the original object. Mac3D has "intelligent" duplication. If you drag the new copy and choose the Duplicate command again, the next copy will be moved in the same manner as the first was moved. ~There are four selection commands in the Edit menu to allow the easy selection of groups of objects. – The Select All command selects every shape and text object in the current Mac3D document. – The Select All Shapes command selects all of the shape objects in the current Mac3D document. Text objects are not affected. – The Select All Text command selects all of the text objects in the current Mac3D document. Shape objects are not affected. – The Select by Fill Pattern command selects all of the objects that have the same fill pattern as the currently selected object in Mac3D. If no object, or objects with different fill patterns are selected, this command will be unavailable.~User-defined tools can be added to the tool palette as a means of saving time and effort in the process of creating objects. To create a custom tool: • Select the object to be represented by a tool. • Choose the Add Tool command.The tool is added to the tool palette. As many as 18 custom tools can be placed into the tool palette.The new tool's icon initially looks like a miniature version of the object; this icon may be altered by selecting the Edit Tool Icon command from the Edit menu. NOTE: This does not alter the tool itself.Any custom tools are saved with the document.To remove a custom tool: • Select the custom tool that is to be removed. • Choose the Remove Tool command from the Edit menu.Any objects created with the custom tool are unaffected.~The number of sides created by the regular polygon tools (which are located in the Alternate Tool Palette) may be customized by the Setup Regular Polygons command in the Edit menu. To set the number of sides: • Choose the Setup Regular Polygons command from the Edit menu. • Enter the number of sides (3-64) in the dialog box. • Click OK.Mac3D will calculate the new regular polygon tools with the specified number of sides. All objects created with the new tools will use the new default settings.The Setup Geodesic Sphere command specifies the number of surfaces to be used by the Geodesic Sphere tool. To set the number of surfaces: • Choose the Setup Geodesic Sphere command from the Edit menu. • Click on the number of sides desired. • Click OK.NOTE: As with any complex object, a large geodesic sphere may slow redraw time considerably.~The Edit Vertices command allows the direct entry of where an object’s vertices lie in the Mac3D World. To use the Edit Vertices command: • Select the shape object to be edited. • Choose the Edit Vertices command from the Edit menu.A dialog box appears showing the selected object. The current vertex is highlighted with a handle. • Move the insertion point through the vertex listings until the appropriate vertex is highlighted. • Enter the new X,Y, and Z coordinates as desired. • Click OK.~The Get Info command displays the size of the selected object in bytes, whether or not it is locked, as well as any comments you want to include for future reference. ~The Reshape menu deals with the making of more complex shapes out of the basic graphic tools.~The Reshape Object command allows you to mold an individual object into a new form by moving portions of that object. To use the Reshape command: • Select the object that you want to reshape.Reshaping handles will appear on the object. You can change the handle types through the Reshape menu. Vertex Handles appear on vertices (corners), Edge Handles on edges (lines), Surface Handles on surfaces (planes). To reshape an object: • Position the pointer over a handle and press the mouse button. • Drag the handle to the desired location. • Release the mouse button.To hide the handles, deselect the object or choose the Resize Object command from the Edit menu.NOTE: Mac3D objects are created out of flat planes. If a vertex is moved such that it causes a plane to warp, the plane will be broken into two separate planes.~The Bevel Corners and Round Corners commands are used to bevel or round the corner of an object (excluding text, lines, arcs, curves and freehand). To use these commands: • Select the object to be modified. • Choose either the Bevel Corners or Round Corners command from the Edit menu as desired. • Select the corners to be modified. More than one may be selected by Shift-clicking. • Click the method of modification desired, either distance or percentage. • Enter the modification amount. • Click the Bevel or Round Button. • Click OK.~The Revolve command creates three- dimensional shapes from two- dimensional outlines. To use the Revolve command: • Select a two-dimensional object. • Choose the Revolve command from the Reshape menu.A dialog box appears. It allows the entry of the number of divisions (facets) and the number of degrees of rotation. The use of more facets makes objects appear smoother, but also uses more memory and slows redraw time. • Enter the number of divisions and the degree of rotation desired. • Click OK.The revolved object is displayed.~The Text menu is used to set the attributes of text within Mac3D, rotation of text, and whether or not text is scaled along with the document when changes are made in the Setup Scale dialog box. Text in Mac3D is treated as a transparent overlay that lies on top of the graphic objects. You may not group text to graphic objects or rotate it in all three dimensions. Further information on text is available from the Topics list.~The text style commands set the style and alignment attributes of text in Mac3D. Mac3D allows only one set of attributes per text object. Mac3D automatically selects plain, left justified text as its default when you create a new model. To change the default text attributes: • Click on the Text tool in the tool palette. • Choose the text style attributes from the Text menu.Mac3D will use the new default style and alignment attributes on all new text objects.To change the style and alignment attributes of an existing text object: • Select the text that is to be changed. • Choose the text style attributes from the Text menu.~Mac3D will allow the rotation of text in 90-degree increments, either to the left or right. To rotate text: • Select the text that is to be rotated. • Choose Rotate Text Left or Rotate Text Right from the Text menu.NOTE: Rotated text is not editable, and prints as a bitmap.~The Scale Text command must be chosen to have Mac3D change the size and position of text when the Setup Scale command is used. Otherwise, text will remain at its original size and position regardless of document scale changes.~The Text Formats dialog box lets you quickly change the default text attributes or the attributes of an existing text object. To change the default text formats: • Click on the text tool in the tool palette. • Choose the Text Formats command from the Text menu. • Select the desired formats from the dialog box. • Click OK.Mac3D will use the new default attributes on all new text objects.To change the attributes of an existing text object: • Select the text that is to be changed. • Choose the Text Formats command from the Text menu. • Select the desired formats from the dialog box. • Click OK.Mac3D will change the selected text to the formats that were selected.~The Fill and Pen menus let you change the patterns used on objects. Mac3D uses a default fill of None, and a default pen pattern of black. To change the default fill or pen pattern: • Click on a tool in the tool palette. • Choose the new fill and pen patterns from their respective menus.Mac3D will use the new fill and pen pattern default on new objects.To change the fill or pen pattern of an existing object: • Select the object. • Choose the new fill and pen patterns from their respective menus.Mac3D will display the new fill and pen patterns that have been chosen.Fill patterns may also be used to create the backgrounds for text objects. Text backgrounds are changed in the same manner as described above.The Color menu also effects fill and pen patterns. For more information on color, select Color Menu from the main help topics list.~Color in Mac3D varies with the machine in use. On the Macintosh 512K, 512Ke, Macintosh Plus, and Macintosh SE, Mac3D provides the eight printing colors. If the Macintosh in use has color capability, Mac3D will display 256 colors and gray tints. Colors in Mac3D may be used with fill or pen patterns, or in shading.To use a color fill pattern: • Choose the desired fill pattern as described in the Fill and Pen menu help topic. • Choose the desired color from the Color menu.If None or white is the current pattern, the fill assignment will automatically be changed to black to produce a solidly colored object.The above process also works on the backgrounds of text objects.To use a color pen pattern: • Choose the desired pen pattern as described in the Fill and Pen menu help topic. • While holding down the Option key, choose the desired color from the Color menu.If a text object is selected, one may change the color of the text characters by holding down the Option key and choosing a color.To use color shading: • Opaque and shade the object as described under Translucent/ Opaque/Shade. • Choose a color from the Color menu.The object will be shaded in the selected color. Two Arrange menu commands, Pattern Shading and Color Shading, let you switch between two types of color shading. In pattern shading, every black pixel is replaced with a pixel of the desired color. In color shading, each panel is assigned a different shade of the chosen color. The type of color shading used on an object can be changed at any time.~The Line menu allows the selection of line widths, endmarks and the dimension feature of Mac3D.~The line width choices let you change existing line widths or set a default width for new objects. To change the default line width: • Select a tool from the tool palette. • Choose a line width from the Line menu. Line widths are not affected by the Setup Scale command, but they are affected when the LaserWriter and ImageWriter reduction percentages are changed.~The endmark choices in the Line menu let you change the locations and types of endmarks used on lines. The default setting is none. To change the default: • Select the Line tool from the tool palette. • Choose the style of endmark desired. • Choose the endmark placement desired (Left/Right/Double).Mac3D will use the default on all newly created lines.To change the endmark of an existing line: • Select the line. • Choose the style of endmark desired. • Choose the endmark placement desired (Left/Right/Double).~Mac3D supports automatic dimension lines. Dimensioned lines display their length in the current font, size and style. They reflect the current document scale and are expressed in the current ruler units. In new documents, Mac3D does not display dimensions. To change this default: • Select the Line tool from the tool palette. • Choose the Dimension command.Mac3D will dimension all newly created lines.To change font, size, or style of an existing dimension line: • Change the default text attributes • Select the line. • Choose the Dimension command twice.~The Layout menu controls the characteristics of Mac3D documents, such as document size, ruler settings, document scale, lighting, and the camera. For more information on a specific menu item, choose the subject from the Help Topics Window.~Four commands in the Layout menu determine how much of the Mac3D document is displayed in the window at one time. These are: Normal, Reduce To Fit, Reduce, and Enlarge. These commands do not affect document scale or printing size.To view the document at normal size: • Choose the Normal command from the Layout menu.All Mac3D documents start out at normal size, which is the same size as they appear in printouts.To reduce the document and allow more of it to be shown at a time: • Choose the Reduce command from the Layout menu.The document will reduce approximately 50% each time this command is chosen. Eventually, the document will reduce until it all fits within the Mac3D window. This effect may also be achieved with the Reduce to Fit command. At extreme reductions, some editing operations, such as text editing, may become more difficult. Also, at full reduction, the grid, ruler lines and rulers are not available.To enlarge your document: • Choose the Enlarge command from the Layout menu.The document will enlarge approximately 50% each time this command is chosen. The document cannot be enlarged beyond actual size.~If the Mac3D document grid is turned on, the pointer and objects in the document will be limited to the minor divisions of the ruler. This command can help in drawing and aligning objects. To stop Mac3D from snapping to the grid, and allow the pointer to move freely: • Choose the Turn Grid Off command from the Layout menu.The grid spacing can be changed using the Setup Rulers command in the Layout menu. If you change the grid spacing, the objects already in the document may not line up to the new grid. To align these objects to the new grid: • Select the objects to be aligned. • Choose the Align To Grid command.The selected objects will move to the nearest grid lines.~The rulers can aid in creating accurate models. They show measurements in the current units (inches or centimeters) and scale. To show or hide rulers: • Choose the Show Rulers or Hide Rulers command from the Layout menu.Rulers accurately show the measurements of the front face of objects located on the document plane. However, if the camera has been moved, the rulers may be inaccurate for objects that are now "in the distance". To accurately measure an object in the distance with the rulers: • Select the object. • Choose the Move To Selection command from the Layout menu.This operation moves the camera to the same distance from the object as when it was created.To change the units of the rulers: • Choose the Setup Rulers command from the Layout menu. • Click on units desired. • Click on a Minor Division option or enter a value in the Custom box. • Click OK.The rulers adjust to the new settings. If the Minor Divisions are reset, the alignment grid will also change.~When the Show Characteristics Box command is chosen from the Layout menu, a small box appears at the bottom of the document window. This box can show a variety of information about the document and the objects in it. To choose which information is displayed: • Choose the Setup Characteristics Box command from the Layout menu.A dialog box appears showing the options for the Characteristics Box. • Choose the options you want to display. • Click OK.When the Show Characteristics Box command is chosen, the items selected will be displayed.NOTE: Measurements are displayed in the current units and reflect the current document scale.~Scaling changes the size represented by objects in a document. For example, in 1/4 inch = 1 foot scale, a one inch line on the screen represents 4 feet. In scaled documents, Mac3D displays the printed size of the object on the screen, while the rulers, dimension lines, the Depth box and the Characteristics Box show the scaled size that the object represents. To change the scale of a document: • Choose the Setup Scale command from the Layout menu.This brings up a dialog box which allows you to change the scale in three ways: — Scale to Percentage scales the document to a percentage of the original document, or a percentage of the current document. You could, for example, be using a 50% scale, and need to scale down to 30% of the currently displayed scale. To accomplish this: • Choose the Percentage and Current options. • Enter 30 in the percentage box. • Click OK. — Seven standard scales. To use a standard scale: • Choose a standard scale. • Click OK. — Custom scaling, where a personal scale is entered. To use a custom scale: • Click the button next to the entry box. • Enter a number in the box. • Click OK.NOTE: Changing the scale of a document changes an object's displayed size and where the object is placed on a page. Enlarging the scale (ie.: 200%) may move objects off the document page. To see those objects, change the document size.~The Mac3D Camera makes it possible to change your viewing location. This is different from the Rotate command, which changes the orientation of the objects relative to one another. To move the Camera: • Choose the Setup Camera command from the Layout menu.The Setup Camera window appears.Specifics on how the camera interrelates with the Mac3D World can be found in the How The World Works section of the Mac3D Owner’s Guide.~The Camera window contains three scroll bars that allow movement within the Mac3D World. To move up or down within the World: • Click on the top or bottom arrow in the scroll bar located at the right of the document window.To move left or right within the World: • Click on the right or left arrow in the scroll bar located at the bottom of the document window.To move forward or backward within the World: • Click on the Forward or Backward arrow in the scroll bar located at the bottom right of the camera window.To exit the camera window: • Choose the Exit Setup Camera command from the File menu.Mac3D can revert to your last camera position by choosing the Revert Camera command from the Layout menu. The camera may also be reverted to the "home" camera position (the starting position in a new document) by choosing the Home View command from the Setup Camera menu while in the Setup Camera window.~The Show Coordinates command may be used within the Setup Camera window to display both the location of the camera and the center of the current document plane. All objects created from a specific camera location will be located with their front faces on the document plane.~The Look buttons change the direction that the Mac3D Camera is facing. To use a Look command, click on the desired direction.~The Orbit buttons move you around the center of the document plane, or the center of the objects that were selected when the Setup Camera command was chosen.To orbit around the document’s center: • From the main document window, make sure that there are no selected objects. • Choose the Setup Camera command from the Layout menu. • Click on the appropriate Orbit button.To orbit around a selected object or group of objects: • Select the objects or group of objects to be orbited around. • Choose the Setup Camera com- mand from the Layout menu. • Click the Align button if it is not dimmed. • Click on the appropriate Orbit button.~The Orthorgraphic command removes the perspective effects from all objects in the document. Lines of depth will not be drawn in many cases.To use orthographic projection: • Choose the Orthographic command from the Layout menu.The Orthographic command will be checked. The command may be reversed by choosing it again.~The Setup Lighting command displays a dialog box that allows you to configure the positioning and intensity of the six Mac3D light sources. To change the lighting in a document: • Choose the Setup Lighting command from the Layout menu.A dialog box appears showing one side of a sphere, and several scroll bars. • Select the light source to be changed by clicking the button above it. • Click on the sphere where the light should shine most directly. OR • Click the Show Coordinates box. • Enter the location for the light in World Coordinates. • Adjust the light intensity by moving the scroll bar up or down.You may also change the lighting effects on the far side of your objects. Simply click on the Back box to display the opposite side.Overall lighting intensity may be adjusted with the scroll bar on the far right. Above this scroll bar is a box marked All. When this box is checked, the spheres display the combined effect of all currently used light sources. Otherwise, the spheres display the effect of the selected light source.~The document size determines how much of the Mac3D World can be displayed from a specific camera position. The Set Document Size command allows you to set the number of pages in the Mac3D document. To change the document size: • Choose the Set Document Size command from the Layout menu.A dialog box appears with a diagram showing the possible number of pages with the current document size in black. The total size of the document is displayed in the upper right hand corner of the dialog box. • Click on boxes to add or remove pages. • Click OK.NOTE: Removing pages does not remove the objects on those pages from the World. However, they will be hidden from view, and will be visible only when the camera is moved, or the pages replaced.~The commands at the bottom of the Layout menu determine what is displayed in the document window. – The Hide Patterns command determines whether patterns are shown on objects. – The Hide Ruler Lines command determines whether the ruler lines (the dotted lines on the document) are displayed. Ruler lines are shown on the screen only, and are never printed. – The Hide Page Breaks command determines whether the page breaks are shown on the document. Page breaks are never printed. – The Hide Tool Palette command determines whether the tool palette is displayed on the left of the document window.~The Arrange menu contains commands that affect the characteristics of objects. For more information on these commands, select the desired topic from the Topics window.~The viewing commands in the Arrange menu allow you to change the viewing order of objects. This is useful when objects lie in the same plane, but need different viewing priorities. There are four view commands: – The View First command brings the selected object to the top of the viewing order. Recall that text lies on top of all shape objects and is not affected by the viewing order commands. – The View Last command puts the selected object at the bottom of the viewing order. – The Increase View command moves the selected object up one in the viewing order. For example: if there were four planes showing 1-2-3-4, and this command was used on the third plane, the new order would be 1-3-2-4. – The Decrease View command moves the selected object down one in the viewing order. For example: if there were four planes showing 1-2-3-4, and this command was used on the second plane, the new order would be 1-3-2-4.To use a viewing command: • Select the object. • Choose the desired viewing command from the Arrange menu.NOTE: The viewing priority changes made through the view commands will override the "normal" priority given by object location. For this reason, incorrect displays may result if these commands are used inappropriately.~The Rotate command allows the rotation of objects or groups of objects in one-degree increments. To rotate an object or group of objects: • Select the object or group to be rotated. • Choose the Rotate command from the Arrange menu.The Rotate dialog box appears showing a circular scroll bar, three rotation options, and a representation of the selected object(s). • Select the type of rotation desired.There are three rotation directions possible. – Spin rotates the selection around the clockwise with increasing degrees. The front face of the selection faces the camera. – Left-Right rotates the object from the right side, towards the camera, to the left with increasing degrees. – Up-Down rotates the selection from the bottom, towards the camera, to the top with increasing degrees. • Either enter degrees in the box and hit the Tab key, drag the scroll circle, use the arrows, or click in the scroll bars to achieve the desired rotation. • Click OK.~There are two align commands in Mac3D. The Align to Grid command aligns the selection to the ruler grid. To use the Align to Grid command: • Select the object(s) to be aligned. • Choose the Align to Grid command from the Arrange menu.The selection will align to the ruler grid.The Align Objects command aligns two or more objects to each other. To use the Align Objects command: • Select two or more objects. • Choose the Align Objects command from the Arrange menu. • Select the desired alignment options. More than one may be selected at one time. • Click OK.The objects are aligned according to the options chosen.NOTE: Text may be aligned with the Align Objects command, however, the Fronts, F/B Centers and Backs options are not available. All objects are aligned according to their boundaries, not their edges.~Grouping objects allows the manipulation of one or more objects as a single unit. To use the Group command: • Select the objects to be grouped. • Choose the Group command from the Arrange menu.The objects will display a single boundary. Grouped objects may be rotated, resized or moved as a single object; however, they may not be reshaped. Groups may contain other groups as members. Selecting a group and changing object attributes (fill and pen patterns, line width) affects every member of the group.~The Glue command allows you to combine two or more objects into a single object. This differs from the Group command in that the objects do not maintain an individual identity when this command is used. They become one entity, and cannot be separated into their original components. To glue objects: • Check to be sure that at least one vertex of each object to be glued corresponds exactly with a vertex from another object. You may need to use the Align Objects command, the grid, or the Edit Vertices command to accomplish this. • Select the object(s) to be glued. • Click OK.If Mac3D asks you to realign the vertices, this means that there are no matching vertices. Try to align the objects or use the Edit Vertices command.The Unglue command takes apart an object into its component elements. The order of the breakdown is: – Objects with multiple surfaces unglue to individual surfaces. – Surfaces unglue to edges. – Edges do not unglue.You may use this command to remove particular surfaces or edges from an object, and then glue the object back together.NOTE: Gluing or ungluing resets the characteristics of the object (fill, line width, etc.) to the default setting.~The Explode command can have two effects upon objects in Mac3D. If a selection of several objects is exploded, they will all be moved away from the center of the selection. If one object is selected, the Explode command will unglue the object and move the component pieces away from the center. To use the Explode command: • Select the object(s) to be exploded. • Choose the Explode command from the Arrange menu.A dialog box appears with an entry box. Entering 100% would have the same effect as choosing unglue (for a single object) or no effect (for multiple objects). Entering 200% would have the effect of moving the objects into a boundary that is two times taller, wider and deeper than the original boundary. Mac3D will not allow numbers less than 100%.~The Translucent, Opaque and Shade commands in Mac3D allow you to determine the way an object is displayed in Mac3D. Using the Translucent command results in a “wireframe” object. All objects are translucent when they are first created in Mac3D. Using the Opaque command calculates the hidden surfaces of the selected object. The hidden surface effect is visible on Opaque objects when they are assigned a fill pattern or are shaded. The Shade command shades the individual surfaces of the objects with gray tints. The gray tints are determined by the lighting in the Mac3D World, which may be altered using the Setup Lighting command in the Layout menu.To use one of these commands: • Select an object. • Choose the desired command from the Edit menu.~The Remove Hidden Surfaces command causes all of the hidden surfaces to not be drawn at all, instead of simply concealed. This can often aid printing and plotting of Mac3D documents. To remove the hidden surfaces: • Select the objects that are to have their hidden surfaces removed. • If the objects are translucent, choose the Opaque command. • Choose the Remove Hidden Surfaces command from the Arrange menu.The hidden surfaces will be removed from the objects.NOTE: If the objects are moved, the hidden surfaces will change and have to be recalculated. Therefore, it is recommended that hidden surface removal be the last step in a design. You may want to save a separate copy of the document before the hidden surfaces are removed.~The Pattern Shading and Color Shading commands allow you to determine which of two possible effects are used when a shaded object is assigned a fill color. Pattern Shading results in every black pixel being replaced with a pixel of the chosen color. When Color Shading is chosen, Mac3D assigns a different shade of the chosen color to each of the object’s surfaces. You may change the effect at any time by selecting the object and choosing the appropriate command.~The Tool Switcher is the small double arrow at the bottom of the tool palette. To switch between the Primary and Alternate Tool Palettes, simply click on the Tool Switcher.~The Depth button, which is located at the bottom of the tool palette, has several uses. It may be used to change the depth of an existing object, add depth to a two-dimensional object, or set a default depth for the creation of new objects.To use the Depth button to modify an existing object, or extrude (add depth to) a two-dimensional object: • Select the object to be modified. • Click on the Depth button.A dialog box appears. • Select the depth option desired. If inches, centimeters or World Coordinates is selected, enter an appropriate measurement in the entry box. • Click OK.If there are no selected objects when the Depth button is clicked, Mac3D will use the depth entered as the default depth for all new objects created.~The PICT format is a standard graphics format that is intended to allow graphics created in different applications to be used in other applications. Mac3D allows the opening and saving of PICT Format. You may also import and export PICT graphics through the Macintosh Clipboard.There are some limitations on the usage of PICT graphics within Mac3D. Any object exported to, or imported from the PICT format is two-dimensional, and cannot be used in three-dimensional rotation or editing. PICT documents are treated as an overlay, and may not be shown behind other objects. Due to this limitation, it is a good idea to always maintain a copy of your documents in Mac3D format.~Plotting Mac3D documents is possible through the use of external plotter driver software. Plots are often improved if the document has its hidden surfaces removed through the Remove Hidden Surfaces command in the Arrange menu.~Technical Support DepartmentChallenger Software Corporation18350 Kedzie AvenueHomewood, IL 60430USA(312) 957-3475 FAX (312) 957-1282AppleLink D0056MCI: CSOFTWARECompuServe: 70041,304~ › Ù F ÷ ø
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