在不同高度位置点击左侧窗口，出现颜色对话框后选取不同颜色，最后点击OK键，左侧窗口便可出现各颜色间的渐变计算结果。Step右侧的文本框可设定计算精度，下边的Rset键可重新设置。-Click on the left side of the window at different height positions, after the color dialog box appears, select different colors, and finally click the OK button, the left window can appear between the various color gradient calculations. Step the right of the text box to set the calculation accuracy, below the Rset key can be reset.