21de02e267
Added Hue threshold function Got alpha threshold to work issue: MatterHackers/MCCentral#3655 Make base applicable to children rather than descendants
84 lines
No EOL
2.7 KiB
C#
84 lines
No EOL
2.7 KiB
C#
/*
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Copyright (c) 2017, Lars Brubaker, John Lewin
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of the FreeBSD Project.
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*/
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using System;
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using MatterHackers.Agg;
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namespace MatterHackers.MatterControl.DesignTools
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{
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public class AlphaThresholdFunction : IThresholdFunction
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{
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protected double rangeStart = .1;
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protected double rangeEnd = 1.0;
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public AlphaThresholdFunction()
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{
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}
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/// <summary>
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/// Create a new AlphaThresholdFunction
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/// </summary>
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/// <param name="rangeStart">Any returned value less than this will be set to 0</param>
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/// <param name="rangeEnd">Any returned value greater than this will be set to 0</param>
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public AlphaThresholdFunction(double rangeStart, double rangeEnd)
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{
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this.rangeStart = Math.Max(0, Math.Min(1, rangeStart));
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this.rangeEnd = Math.Max(0, Math.Min(1, rangeEnd));
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}
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public double Transform(Color color)
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{
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return color.Alpha0To255 / 255.0;
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}
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public double Threshold(Color color)
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{
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return GetThresholded0To1(Transform(color));
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}
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private double GetThresholded0To1(double rawValue)
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{
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double outValue = 0;
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if (rawValue < rangeStart)
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{
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outValue = 0;
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}
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else if (rawValue > rangeEnd)
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{
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outValue = 0;
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}
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else
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{
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outValue = (double)(rawValue - rangeStart) / (double)(rangeEnd - rangeStart);
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}
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return outValue;
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}
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}
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} |