Procedures for displaying grid lines in cyan under your trace coverage

You can use the following commands in ARCPLOT to display your grid lines (in cyan) under your trace coverage (i.e., the arcs you generate from the "tr add" command).

      Arcplot: shadeset plotter
      Arcplot: shadecolor cyan
      Arcplot: shadeput 1
      Arcplot: shadecolor white
      Arcplot: shadeput 2
      Arcplot: gridshade your_grid
      Arcplot: arcs tracecov
   
Initially, when you go into ARCPLOT and display the grid using the gridshade command, most of the grid is red and the lines you are converting to vectors are black. This is because the grid cells' values are 1 (which normally plots as black) and 2 (which plots as red). The commands, above, change the default colors to cyan and white, respectively. When you plot the trace coverage ("tracecov", above) the lines show up as black on the cyan grid lines. You can then generate a plot which can be used to show the error-in-digitizing differences between the grid lines and the vectorized arcs.



11/08/99