Assign a color to the body based on its thickness

Question

Hello,

In Discovery (or Spaceclaim), is there a way to assign a color to the body based on its thickness.

Let's say I have an assembly with diffenrent parts, I would like to have all the 3 mm thickness part in one color (eg. red), all the 5 mm thickness part in another color (eg. green), and so one.

I was thinking about a code like :

Create an empty list dictionary for thicknesses and color
Loop over bodies :
   Get the thickness
   If thickness not in dict:
      random color code generation
      store thickness and color code in dict
   else:
      get the color in dict
   Affect the color to the part

My problem is about getting the thickness of the part.

I suppose it's possible because the extract midsurface function get the thickness information.

Do you have any idea for getting this data ?

Regards,

Jean

aksh3000 · Answer

This script colors midsurface or surface bodies based on their thickness. It first defines a list of predefined colors, then creates a dictionary called thickness_color to store the relationship between each unique thickness value and its assigned color. The thickness_key() function converts the thickness value to millimeters and rounds it so that very small floating-point differences do not create separate color groups. The script then loops through all bodies in the root part and checks whether each body is an open/surface body using IsClosed. For each open body, it tries to read the midsurface thickness using body.GetMidSurfaceAspect().GetThickness(). If the body does not contain midsurface thickness information, it is skipped. When a valid thickness is found, the script checks whether that thickness already has a color assigned. If not, it assigns the next available color from the color list and stores it in the dictionary. Finally, it applies the corresponding color to the body using ColorHelper.SetColor() and prints the body name with its thickness. At the end, it prints the complete thickness-to-color mapping.

colors = [

ColorHelper.Red,

ColorHelper.Green,

ColorHelper.Blue,

ColorHelper.Cyan,

ColorHelper.Magenta,

ColorHelper.Yellow,

ColorHelper.Orange,

ColorHelper.Azure

]
thickness_color = {}

color_index = 0
def thickness_key(thick):

# If thickness is returned in meters, this converts to mm

return round(thick * 1000.0, 3)
for body in GetRootPart().GetAllBodies():

try:

    is_closed = body.Master.Shape.IsClosed

except:

    try:

        is_closed = body.Shape.IsClosed

    except:

        continue

# Midsurface bodies are generally open/surface bodies

if is_closed == False:

try:

        thick = body.GetMidSurfaceAspect().GetThickness()

    except:

        # No midsurface thickness information on this body

        continue

key = thickness_key(thick)

if key not in thickness_color:

        thickness_color[key] = colors[color_index % len(colors)]

        color_index += 1

ColorHelper.SetColor(

        Selection.Create(body),

        SetColorOptions(),

        thickness_color[key]

    )

print("Body:", body.GetName(), "Thickness mm:", key)

print("Thickness/color map:")

for thick in thickness_color:

print(thick, thickness_color[thick])

aksh3000 · Answer

The logic  colors midsurface or surface bodies based on their thickness. It first defines a list of predefined colors, then creates a dictionary called thickness_color to store the relationship between each unique thickness value and its assigned color. The thickness_key() function converts the thickness value to millimeters and rounds it so that very small floating-point differences do not create separate color groups. The script then loops through all bodies in the root part and checks whether each body is an open/surface body using IsClosed. For each open body, it tries to read the midsurface thickness using body.GetMidSurfaceAspect().GetThickness(). If the body does not contain midsurface thickness information, it is skipped. When a valid thickness is found, the script checks whether that thickness already has a color assigned. If not, it assigns the next available color from the color list and stores it in the dictionary. Finally, it applies the corresponding color to the body using ColorHelper.SetColor() and prints the body name with its thickness. At the end, it prints the complete thickness-to-color mapping.