createcolormap

バージョン 0.2 (1.74 MB) 作成者: Takuya Miyashita
This function allows to create colormap Nx3 array (RGB) with an arbitrary combination of colors.

ダウンロード: 61

更新 2021/10/9

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createcolormap.m

View createcolormap on File Exchange
This function allows to create colormap Nx3 array (RGB) with an arbitrary combination of colors. RGB values between the specified colors will be smoothly connected by linear interpolation.

Example

cmap = createcolormap(C);
cmap = createcolormap(n,C);
cmap = createcolormap(colorA, colorB);
cmap = createcolormap(n, colorA, colorB);
cmap = createcolormap(colorA, colorB, colorC, colorD, ...);
cmap = createcolormap(n, colorA, colorB, colorC, colorD, ...);

where n is the number of segments for the output color scheme, and C is the RGB matrix of color junctions.

Usage

  • blue-white-red (polar)

    b = [0,0,1];
    w = [1,1,1];
    r = [1,0,0];
    
    bwr = createcolormap(b,w,r); % 256x3 array
    
    colormap(bwr)
    colorbar

    If you want to use dark blue and red colors, try below:

    b = [0.0,0.0,0.5];
    w = [1.0,1.0,1.0];
    r = [0.5,0.0,0.0];
    
    bwr = createcolormap(b,w,r); % 256x3 array
    
    colormap(bwr)
    colorbar

    To create a more discrete color structure, input the number of elements in the first argument as shown below.

    bwr = createcolormap(16,b,w,r); % 16x3 array 
  • more complicated combination

    colorA = [0.0,1.0,0.0];
    colorB = [1.0,0.5,0.5];
    colorC = [0.5,0.5,0.5];
    colorD = [1.0,1.0,0.0];
    
    cmap = createcolormap(64,colorA,colorB,colorC,colorD); % 64x3 array
    
    surf(peaks); 
    colormap(cmap);
    colorbar;
  • RGB matrix

    cmap = createcolormap(rand(10,3)); % 10 random colors
    
    surf(peaks);
    colormap(cmap);
    colorbar;

License

MIT

Author

Takuya Miyashita
Disaster Prevention Research Institute, Kyoto University

Update

v0.1 2021/10/01
v0.2 2021/10/09

引用

Takuya Miyashita (2023). createcolormap (https://github.com/hydrocoast/createcolormap/releases/tag/v0.2), GitHub. 取得済み .

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バージョン 公開済み リリース ノート
0.2

See release notes for this release on GitHub: https://github.com/hydrocoast/createcolormap/releases/tag/v0.2

0.1

この GitHub アドオンでの問題を表示または報告するには、GitHub リポジトリにアクセスしてください。
この GitHub アドオンでの問題を表示または報告するには、GitHub リポジトリにアクセスしてください。