50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
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#include "BaseColor.h"
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//彩色方式
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// 计算变密度显示时的颜色
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int GetVDLDefaultColor(QColor *crColor,int nColorNum,int iMode)
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{
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int i,r,g,b;
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float flWidth,flTemp,temp;
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if ( nColorNum > 256 ) nColorNum = 256;
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flTemp = 255. / nColorNum;
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if ( iMode == MONO_MODE ) nColorNum = 2;
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for (i=0; i<nColorNum; i++)
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{
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switch ( iMode )
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{
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case COLOR_MODE: // 彩色
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temp = 255. * (float)(nColorNum-i) / (float)nColorNum;
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g = temp;
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if ( i > nColorNum / 2 )
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temp = 255. * 2.*(float)(nColorNum-i) / (float)nColorNum;
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else
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temp = 255;
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r = temp;
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if ( i > nColorNum / 2 )
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temp = 255. * (float)(nColorNum-i) / (float)(nColorNum*2);
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else
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temp = 255. * 6.*((float)nColorNum/2.-i)*((float)nColorNum/2-i)*((float)nColorNum/2-i)
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/ (float)(nColorNum*nColorNum*nColorNum);
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b = temp;
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break;
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case GRAY_MODE: // 灰度
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flWidth = (nColorNum-i) * flTemp;
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r = (int)flWidth ;
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g = (int)(flWidth );
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b = (int)(flWidth );
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break;
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case MONO_MODE: // 二值
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if (i== 0) r = g = b = 255;
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else r = g = b =0;
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break;
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}
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crColor[i] = qRgb(r,g,b);
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}
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return nColorNum;
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}
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