Description: Create an empty Qt project, the given file can be added. Interface has two parts, part of the view point coordinate input section. Since using editingFinished QSpinBox class () signal, so every time regardless of the original input vertex values that point there is no change, we must make the cursor in the box is too little, or press an enter also, in short, to the That box over it.
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File list (Check if you may need any files):
Try_Point_Line\sourse\ctr_pad.cpp
..............\......\ctr_pad.h
..............\......\ctr_pad.qrc
..............\......\ctr_pad.ui
..............\......\drawCoordinate.cpp
..............\......\drawHeader.h
..............\......\drawLine.cpp
..............\......\drawPoint.cpp
..............\......\main.cpp
..............\......\mainwindow.cpp
..............\......\mainwindow.h
..............\......\mainwindow.qrc
..............\......\mainwindow.ui
..............\......\tetrahedron.cpp
..............\......\tetrahedron.h
..............\sourse
Try_Point_Line
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