iGrid Plotter allows you to plot drawing grid from within your .Net or VCL application. It contains 4 functions:

PlotOrthogonal

Plots orthogonal grid within the passed rectangle.

PlotHandwriting

Plots handwriting grid within the passed rectangle.

PlotAxis

Plots axonometric grids within the passed rectangle.

PlotAxonometricPreset

Plots axonometric preset within the passed rectangle.

All these functions are fully customizable with the passed parameters, but you can use presets for most popular axonometric grids with easy.

Current version offers you the following axonometric presets:
30 isometric projection
1/2 isometric projection
30/60 isometric projection
45/45 «military» isometric projection
7/42/0.5 NEN/ISO dimetric projection
30/0.5 «chinese perspective» dimetric projection

0.5 «side-view» dimetric projection

0.5 «top-view» dimetric projection

iGrid Plotter is distributed with full source codes for .Net (C#) and for VCL (Delphi Pascal).