# Color Quantities

Visualize color rgb-valued data at the nodes or edges of a curve network.

Example:

#include "polyscope/curve_network.h"

std::vector<std::array<double, 3>> randColor(edges.size());
for (size_t i = 0; i < edges.size(); i++) {
randColor[i] = {{polyscope::randomUnit(), polyscope::randomUnit(), polyscope::randomUnit()}};
}

// visualize


CurveNetwork::addNodeColorQuantity(std::string name, const T& values)

Add a color quantity to the nodes of the curve network

• values is the array of colors at nodes. The type should be adaptable to a 3-vector array of floats. The length should be the number of nodes in the curve network.

RGB values are interpreted in the range [0,1].

CurveNetwork::addEdgeColorQuantity(std::string name, const T& values)

Add a color quantity to the edges of the curve network

• values is the array of colors at edges. The type should be adaptable to a 3-vector array of floats. The length should be the number of edges in the curve network.

RGB values are interpreted in the range [0,1].

### Options

Parameter Meaning Getter Setter Persistent?
enabled is the quantity enabled? bool isEnabled() setEnabled(bool newVal) yes

(all setters return this to support chaining. setEnabled() returns generic quantity, so chain it last)