Note: This exercise requires the use of training.gpj project and training.glb library available from: download.aspx. Instructions for unzipping and setting up these files is on: using gint downloaded examples.aspx.
This demonstrates a Mapping property value of ‘Repeat’ in a tile. There are other ways to map tiles into their destination fill area, as we shall see.
Stretch horizontally but repeat vertically (Expand Horizontal/Repeat Vertical). This is useful for vertical columns of various types, such as drills and well sections.
Repeat horizontally but stretch vertically (Repeat Horizontal/Expand Vertical)
Stretch in both directions, retaining the proportions of the original shape (Maintain Proportions). This is useful for symbols that you want to enlarge or shrink without distortion, such as the ‘GB’ (hand) sampler symbol we saw in Part 2 of this tutorial.
Stretch in both directions, distorting the proportions of the original shape to match the proportions of the fill area (Expand to Fit)
Not a very useful transformation for this symbol, is it? Let’s see a tile where ‘Expand Horizontal, Repeat Vertical’ makes sense.
In the bottom left rectangle, the pattern appears twice vertically. In the upper left rectangle, it appears four times. In the square at right, it appears six times. In all cases, the tile is stretched from side to side so that the shaft of the auger occupies roughly the middle third of the final fill.
In all three cases, the Mapping value of ‘Expand Horizontal, Repeat Vertical’ in the tile results in a useful representation of an auger.