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- CREATING YOUR OWN GRIDS
-
- Dot lattice, Line grid, Chequer, Polar grid
-
- The same method is used to create these four types of object. Click on the
- appropriate icon to enter Create mode. The data window will show the
- parameters for the object. You then have three ways of creating the object.
- You can:
- 1. click on the Create button to create an object with the default (or
- last-used) parameters or
- 2. alter any of the parameters before clicking on the Create button or
- 3. drag a box and finish by clicking Select.
-
- Once the object has been created, you can edit it as described in Editing
- the Examples in Manual1.
-
- The other two types of object, Tiled sprite and Tessellation, cannot be
- created in isolation. A tiled sprite requires a suitable sprite and a
- tessellation needs an object to be tessellated.
-
- Tiled sprite
-
- Drop a sprite or spritefile onto the load target. (An example, sprite, can
- be found in the TileSprite subdirectory.) Open the sprite menu by clicking
- on the menu button and choose a sprite. The object can now be created. If
- the H and V sizes are too small an error message will be displayed. More
- sprites can be loaded and the sprite currently used in the object can be
- changed by choosing a different sprite and clicking on Apply.
-
- When a file containing a tiled sprite is saved, all the sprites which have
- been loaded are also saved. If you wish to save the file with only those
- sprites which are being used, click on Clear unused sprites before saving.
-
- Tessellation
-
- These objects are created in the same way as tiled sprites except that Draw
- files are loaded instead of sprites. The Draw files, however, must conform
- with certain criteria. In the Tessellate subdirectory is an example file,
- Drawfile, that you can drop onto the load target. You will be asked give the
- shape a name. Draw files in the form of Libraries may also be loaded. One
- such library, TesselLib, contains all the shapes which have been used in the
- Tessellation example files. When saving files containing tessellations,
- remember to click on Clear unused shapes if you do not want to save all the
- shapes with the file.
-
- Designing Tessellation Shapes
-
- GridPro requires Tessellation shapes to consist of two objects. One is the
- shape which will be used in the tessellation and the other is a rectangle, a
- bounding box which defines the size of the cells in which the shapes are
- placed. This rectangle must be in front of the shape and grouped with it.
- Tessellation objects may be created in any drawing package which allows the
- creation of Draw files, but Vector is ideal for the purpose as it allows
- objects to be drawn with precision.
-
- Printing
-
- There are two methods of printing.
-
- Direct printing
- If you have a printer driver installed you can print a sheet by ‘saving’ a
- file (in Draw format) onto the printer driver icon on the icon bar. This is
- satisfactory only if the design to be printed does not exceed the printer
- driver page size. You can check this before printing by displaying Printer
- limits (from the Display submenu).
-
- Indirect printing
- If a file is saved, it can be loaded into another application for printing.
- 4Mation’s Vector, Poster and Chameleon allow large documents to be printed
- over more than one sheet.
-
-
- GRIDPRO AND VECTOR
-
- GridPro shares a number of common features with Vector.
-
- Libraries
- Libraries of tessellation shapes saved from GridPro can be loaded into
- Vector where individual shapes can be viewed, edited, deleted or renamed.
-
- Special objects
- GridPro is able to save files very efficiently by using one of the special
- object formats designed for use in Vector. Replication allows a single
- object to be repeated as many times as required without taking up much more
- memory than that required to store the object on its own. This means that if
- a GridPro file is loaded into Vector, it won’t require the vast amounts of
- memory that would be needed by other drawing programs. It also means that
- grids created in GridPro can, to some extent, be edited in Vector. To edit a
- GridPro object in Vector, save it as a Vector file and then load it into
- Vector. Choose Untag from Vector’s Select submenu. It can then be moved and
- edited as required. Note that GridPro objects make use of Vector’s
- Replication facility.
-
-
- Tessellation Errors
-
- When you are using your own shapes to create tessellations, an error message
- may be displayed. The following errors are reported by GridPro:
-
- 1. The object is not a group object, or a library object containing a group
- object.
- 2. The group does not contain exactly two objects.
- 3. The second object in the group is not a path object.
- 4. The path element sequence in that object is not correct.
- 5. There was an error when creating or adding the shape object.
-
- Remember that a shape must consist of a single object (or group object)
- which is behind, and grouped with, a bounding box object.
-