Android Open Source - android-plotter Function Graph3d

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From Project

Back to project page android-plotter.

License

The source code is released under:

Apache License

Java Source Code

package org.solovyev.android.plotter.meshes;
/*from ww  w  .  j av  a 2s  . c o  m*/
import org.solovyev.android.plotter.Dimensions;
import org.solovyev.android.plotter.Function;

import javax.annotation.Nonnull;

public class FunctionGraph3d extends BaseSurface implements FunctionGraph {

  @Nonnull
  private volatile Function function;

  FunctionGraph3d(@Nonnull Dimensions dimensions, @Nonnull Function function) {
    super(dimensions);
    this.function = function;
  }

  @Nonnull
  public static FunctionGraph3d create(@Nonnull Dimensions dimensions, @Nonnull Function function) {
    return new FunctionGraph3d(dimensions, function);
  }

  @Nonnull
  @Override
  protected SurfaceInitializer createInitializer() {
    return new SurfaceInitializer.GraphSurfaceInitializer(this, dimensions.graph);
  }

  @Override
  protected float z(float x, float y, int xi, int yi) {
    final Function f = function;
    switch (f.getArity()) {
      case 0:
        return f.evaluate();
      case 1:
        return f.evaluate(x);
      case 2:
        return f.evaluate(x, y);
      default:
        throw new IllegalArgumentException();
    }
  }

  @Override
  public void setFunction(@Nonnull Function function) {
    // todo serso: might be called on GL thread, requires synchronization
    if (!this.function.equals(function)) {
      this.function = function;
      setDirty();
    }
  }

  @Nonnull
  @Override
  public Function getFunction() {
    return function;
  }

  @Nonnull
  @Override
  protected BaseMesh makeCopy() {
    return new FunctionGraph3d(dimensions, function);
  }

  @Override
  public String toString() {
    return function.toString();
  }
}

Java Source Code List

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