Available in: Sketch, Part Studio

Curvature color map enables deeper investigation of curvature by applying a gradient of color of your choosing onto a face or surface in a Part Studio. You can adjust the scale of the color gradient and choose from different types of color maps to gain the best visual representation to discern surface continuity and transition between edges.

  1. Click the Show analysis tools icon () in the bottom right corner of the interface. From the menu, select Curvature color map:

    This applies a color map to the faces and surfaces in the graphics area, using a color gradient to show curvature across a scale:

Color map showing curvature against a scale

Options for visualizing curvature with a color map include:

  • Setting colors for the map. Click the dropdown menu to select a color scheme that best suits your needs and visualization preferences:

    • Viridis - A scale of deep purple to light green

    • Blue -> Red - A scale of blue to red

    • Plasma - A scale of deep blue to light yellow

    • Rainbow - A scale of colors of the rainbow

  • Selecting a graph for the map. Click the dropdown menu to select a specific graph:

    • Gaussian - Bases the color assignments on the product of the maximum and minimum radii at a given point. The curvature is displayed as the inverse of the radius.

    • Mean - Bases the color assignments on the mean of the maximum and minimum radii at a given point.

    • Max radius - Bases the color assignments on the maximum radius value at a given point.

    • Min radius - Bases the color assignments on the minimum radius value at a given point.

You can relocate the color map to any location in the graphics area to improve viewing of model and map. Hover over the graph until you see a cross-hair for mouse pointer. Click and drag the graph to a new location. For some locations, the graph reorients to a vertical position. The Colors and Curvature dropdowns remain at the top of the graphics area, regardless of where the graph is located.

  • When there is no curvature of the surface or face, Onshape doesn't assign any values to the color map scale since there are no calculations of radii. The color map is still visible and you can still select from maps and colors. No curvature color is applied if there are no values calculated. The model remains the same color before any curvature analysis tools were opened.

  • You can change the scale by clicking and dragging the end points of the scale closer to eachother. The points on the scale recalculate and the colors are refreshed on the faces and surfaces according to the new scale. You can also click on a value and type into the field to adjust the scale. Make sure to click the small refresh icon.