home *** CD-ROM | disk | FTP | other *** search
- Editing the Examples
-
- The quickest way to get to grips with GridPro is to look at some of the
- examples supplied with the program. Load GridPro (by double-clicking on the
- !GridPro icon) and then open the Examples subdirectory.
-
- DOT LATTICE
-
- Open the DotLattice subdirectory and load the '10mm' file by double-clicking
- on it. Two windows are opened: the design window and, below it, the data
- window. Open the design window to full size and press the Home key to show
- the whole of the dot pattern. Click on the object to select it. When it is
- selected, a set of eight ears is displayed around the edges. In the toolbox
- at the left hand side of the design window you will see that the Dot Lattice
- icon (the sixth one up from the bottom) is also selected. The lattice can be
- dragged to a new position (by pressing Select over the object and moving the
- mouse). The size of the lattice can be changed by dragging any of the eight
- handles with Select. The spacing between the dots does not change when the
- lattice is rescaled in this way. Dragging the handles with Adjust, however,
- changes both the size of the lattice and the dot spacing. You can abort a
- dragging operation by pressing Escape.
-
- Parameters
-
- A number of changes can be made to the dot lattice using the options
- available in the data window.
-
- Rectangular/Skewed
- The lattice can be skewed by clicking on the Skewed button and changing the
- value in the degrees box. Any value in the range 20°-70° may be entered.
- Click on Apply to apply the change.
-
- Spacing
- The horizontal spacing between the dots can be changed by altering the value
- in the H box. The V value is grey at the moment. This means that the
- vertical spacing is the same as the horizontal spacing. If you click on the
- small button to the right of the Spacing boxes, you can enter a different
- value for the V spacing. (Remember to click on Apply afterwards.)
-
- Dot size
- Clicking on the Dot size value opens a box. You can choose one of the six
- preset sizes or enter your own size. Click on Set to confirm a change.
-
- Colour
- Clicking on the Colour rectangle opens a box which allows you to change the
- colour of the dots. You can choose one of the 16 colours, enter RGB
- percentage values, or drag the RGB sliders. Click on OK to use the colour.
-
- Size and Position
- Although the size and position of the object can be changed by dragging,
- more precise changes are possible. Click on the Size/Position icon to show
- the size and position values. The Position relates to the bottom left corner
- of the object. Click on the i icon to display the previous parameters.
-
- LINE GRID
-
- Open the LineGrid subdirectory and load the '1cm_2divs' file. Select the grid
- by clicking on it. It is likely that the lines will appear to be unequal in
- width. This is due to screen resolution. If you press Menu over the window
- and choose Reduce detail from the Display submenu (or press Ctrl R), the
- lines will all be displayed with the same width. (This does not affect the
- actual width of the lines.)
-
- Parameters
-
- You can toggle between the horizontal line parameters and vertical line
- parameters by clicking on the appropriate icons. In this file, both sets of
- lines have the same values.
-
- Major and Minor Lines
- There are two types of line, Major and Minor. If you change the colour of
- the Minor lines (both horizontally and vertically), you will be able to see
- them more easily. Try changing the number of Minor lines. If the lines are
- too close together to distinguish one from another, increase the
- magnification by pressing Page Up. You can also change the distance between
- the Major lines, and the width of both Major and Minor lines. It is
- difficult to determine suitable line widths by looking at a grid on screen.
- It is best to print some files using different line widths (and colours)
- before deciding which values are the most suitable for your requirements and
- give the best results on your printer.
-
- As subdivisions in line grids cannot be turned off, you have to cheat if you
- want a grid with no subdivisions. The example file 1cm_square shows how this
- is done. To create a 1cm grid, you set the Major lines to 2cm with 2 Minor
- lines, and make both sets of lines the same width and colour.
-
- Grid Types
- Either the horizontal lines or the vertical lines can be turned off by
- clicking on the None button. The Log button allows you to create logarithmic
- grids and you can enter a cycle value to specify how many times the log
- scale will be repeated.
-
- Size and Position
- The size and position of the grid can be specified in the same way as
- explained above.
-
- CHEQUER
-
- Open the Chequer subdirectory and load the '1cm' file. Select the object by
- clicking on it. A chequer pattern consists of a matrix of rectangles which
- are alternately coloured.
-
- Parameters
-
- You can change the number of rectangles per row and column independently or,
- by clicking on the button on the right of the H and V values, ensure that
- both rows and columns have the same number. You can set the line and fill
- colours and specify the width of both the lines and the surrounding border.
- The border can be turned off by clicking on the Border button. Care must be
- taken if you want to ensure that the rectangles are squares. If the H and V
- numbers are changed, then the H and V sizes will also need to be altered so
- that HSize/HNumber = VSize/VNumber.
-
- TILED SPRITE
-
- Open the TileSprite subdirectory and load the 'sprite1' file. Select the
- object by clicking on it. This type of object consists simply of a single
- sprite copied in a matrix. You can change the H and V scale. Decrease the
- scale to increase the number of sprites and increase the scale to decrease
- the number of sprites. You can also change the H and V sizes and positions.
- For further information on Tiled Sprites see Manual3.
-
- POLAR GRID
-
- Open the PolarGrid subdirectory and load the 'whole_1' file. Select the object
- by clicking on it. Polar grids are the most complex objects provided by
- GridPro.
-
- Parameters
-
- Grid type
- A grid may be a complete circle, a complete sector, a hollow circle or a
- hollow sector. As these terms are not completely satisfactory you should see
- for yourself the differences between the four types.
-
- Rings
- Select Rings by clicking on the rings icon. The number of rings can be
- changed by altering the Number value. There are two types of ring, Outer and
- Inner. The width and colour of these rings may be changed as required. If no
- rings are required, click on the on/off icon.
-
- Spokes
- Select Spokes by clicking on the spokes icon. The number of spokes can be
- changed by altering the Number value. There are two types of spoke, Outer
- and Inner. The width and colour of these spokes may be changed as required,
- but note that Outer colour applies only to sectors. If no spokes are
- required, click on the tick icon. Note that you cannot turn off both rings
- and spokes.
-
- Sector parameters
- A sector may be orientated in any direction by specifying a Sector
- direction. The angle of a sector is set by the Angle value.
-
- Hollow parameters
- You can set the size of the ‘hole’ in hollow circles and sectors by entering
- a percentage value in the Inner box.
-
- TESSELLATIONS
-
- Open the Tessellate subdirectory and load the 'dod_hex_sq' file. Select the
- object by clicking on it. Tessellations are similar to Tiled Sprites in that
- a single object is copied in a matrix. Creating the object, however, can be
- quite complicated. Further information on using the Tessellation facility is
- given in Manual3. Note that this facility is not restricted to the creation
- of true tessellations.
-