Add explanation about basic support

2 files changed, 124 insertions, 1 deletions

diff --git a/docs/assets/support_basic.svg b/docs/assets/support_basic.svg
new file mode 100644
index 000000000..595f7f857
--- /dev/null
+++ b/docs/assets/support_basic.svg
@@ -0,0 +1,119 @@
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diff --git a/docs/generating_areas.md b/docs/generating_areas.md
index 1061a5e02..e74d16bfc 100644
--- a/docs/generating_areas.md
+++ b/docs/generating_areas.md
@@ -40,4 +40,8 @@ The first step in generating support is determining where there is overhang in y
 

 A normal, filled layer is assumed to support the layer that's above it. It will also support the layer above it fine even if the layer above it extends slightly beyond the layer below. The limit to how far the layer above can extend to still be supported by the layer below is what we'll call the "support distance". If we assume that the layer below supports the layer above if the slope between the edges of these layers is less than a certain angle (the Overhang Angle setting), then we can compute the support distance with a simple formula: `tan(a) * layer_height`

 

-![Formula for support distance](assets/support_distance_formula.svg)
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+![Formula for support distance](assets/support_distance_formula.svg)

+

+CuraEngine will perform an offset of the current layer (drawn below in black) by this support distance (drawn in gray), and then subtract that from the layer above to get the area that is called the "basic support" (drawn in blue).

+

+![Basic support](assets/support_basic.svg)
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