@giro3d/giro3d/gui/ColorMapInspector.js

A JS/WebGL framework for 3D geospatial data visualization

/*
 * Copyright (c) 2015-2018, IGN France.
 * Copyright (c) 2018-2026, Giro3D team.
 * SPDX-License-Identifier: MIT
 */

import ColorMap from '../core/ColorMap';
import Panel from './Panel';
const modes = ['Elevation', 'Slope', 'Aspect'];
const DEFAULT_COLORMAP = new ColorMap({
  colors: [],
  min: 0,
  max: 1
});

/**
 * Inspector for a {@link ColorMap}.
 */
class ColorMapInspector extends Panel {
  get colorMap() {
    return this._colorMapFn() ?? DEFAULT_COLORMAP;
  }
  get mode() {
    return modes[this.colorMap.mode - 1];
  }
  set mode(v) {
    this.colorMap.mode = modes.indexOf(v) + 1;
  }

  /**
   * @param gui - The GUI.
   * @param instance - The Giro3D instance.
   * @param colorMapFn - The color map to inspect.
   */
  constructor(gui, instance, colorMapFn, notify) {
    super(gui, instance, 'Color map');
    this._colorMapFn = colorMapFn;
    this.addController(this.colorMap, 'active').name('Enabled').onChange(notify);
    this.addController(this, 'mode', modes).name('Mode').onChange(notify);
    this.addController(this.colorMap, 'min').name('Lower bound').min(-8000).max(8000).onChange(notify);
    this.addController(this.colorMap, 'max').name('Upper bound').min(-8000).max(8000).onChange(notify);
  }
  updateControllers() {
    const disabled = this._colorMapFn() == null;
    this._controllers.forEach(c => c.disable(disabled));
    super.updateControllers();
  }
}
export default ColorMapInspector;