get_line_approxT_get_line_approxGetLineApproxGetLineApproxget_line_approx (算子名称)

名称

get_line_approxT_get_line_approxGetLineApproxGetLineApproxget_line_approx — Get the current approximation error for contour display.

警告

get_line_approxget_line_approxGetLineApproxGetLineApproxGetLineApproxget_line_approx is obsolete and is only provided for reasons of backward compatibility.

参数签名

描述

get_line_approxget_line_approxGetLineApproxGetLineApproxGetLineApproxget_line_approx returns a parameter that controls the approximation error for region contour display in the window. It is used by 该算子 disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region. ApproximationApproximationApproximationApproximationapproximationapproximation controls the polygon approximation for contour display ( 0 <=> no approximation). ApproximationApproximationApproximationApproximationapproximationapproximation is only important for displaying the contour of objects, especially if a line style was set with set_line_styleset_line_styleSetLineStyleSetLineStyleSetLineStyleset_line_style.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 未经并行化处理。

参数表

结果

get_line_approxget_line_approxGetLineApproxGetLineApproxGetLineApproxget_line_approx returns 2 ( H_MSG_TRUE) if the window is valid. Otherwise an exception is raised.

可能的后置算子

set_line_approxset_line_approxSetLineApproxSetLineApproxSetLineApproxset_line_approx, set_line_styleset_line_styleSetLineStyleSetLineStyleSetLineStyleset_line_style, disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region

参考其它

get_region_polygonget_region_polygonGetRegionPolygonGetRegionPolygonGetRegionPolygonget_region_polygon, set_line_approxset_line_approxSetLineApproxSetLineApproxSetLineApproxset_line_approx, set_line_styleset_line_styleSetLineStyleSetLineStyleSetLineStyleset_line_style, disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region

模块

Foundation