mirror of https://github.com/CGAL/cgal
152 lines
6.7 KiB
HTML
152 lines
6.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<title>Polygon partition</title>
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</head>
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<body>
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<P align="center"><FONT size="5">How to use Partition_2 Demo</FONT></P>
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<br>
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Main Functionality
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<UL>
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<LI><A href="#new">Reset application</A></LI>
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<LI><A href="#new_window">Creating a new window</A></LI>
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<LI><A href="#print">Print</A></LI>
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<LI><A href="#close_window">Close the current window</A></LI>
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<LI><A href="#quit">Quit the application</A></LI>
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</UL><br>
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Editing
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<UL>
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<LI><A href="#gen_p">Generate polygon</A></LI>
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<LI><A href="#inp_p">Create a new simple polygon</A></LI>
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</UL>
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Persistance
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<UL>
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<LI><A href="#save_polygon">Save the current polygon</A></LI>
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<LI><A href="#load_polygon">Load an existing polygon</A></LI>
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</UL>
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<P align="left"><STRONG><FONT size="5"></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT size="5"></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT size="5"></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT size="5"></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"><A name="new">
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</A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Reset application</FONT></STRONG></P>
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Press Ctrl+N combination keys or go to File menu and choose "New". The
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polygon will be erased, the window's visible area will be set to default.
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(-1, 1, -1, 1)
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<P align="left"><STRONG><FONT color="#3300cc" size="4">
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<A name="new_window"></A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Create a new window</FONT></STRONG></P>
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Press Ctrl+W combination keys or go to File menu and choose "New Window".
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A new window will appear, modifying the visible area to be the default
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(-1, 1, -1, 1).
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<P align="left"><STRONG><FONT color="#3300cc" size="4"><A name="print">
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</A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">Print
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</FONT></STRONG></P>
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Press Ctrl+P combination keys or go to File menu and choose "Print". The
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visible area on the screen will be outputed to the print device of your
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choice.
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<P align="left"><STRONG><FONT color="#3300cc" size="4">
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<A name="close_window"></A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Close the current window</FONT></STRONG></P>
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Press Ctrl+X combination keys or go to File menu and choose "Close". You
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may do it for any window other than the initial one, this operation will
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close only the one you have choosen. If you do this for the initial parent
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window, it will close the others too.
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<P align="left"><STRONG><FONT color="#3300cc" size="4"><A name="quit">
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</A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Quit the application</FONT></STRONG></P>
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Press Ctrl+Q combination keys or go to File menu and choose "Quit". When
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you quit the application, all the windows you have created will be
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destroyed.
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<P align="left"><STRONG><FONT color="#3300cc" size="4"><A name="gen_p">
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</A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Generate polygon</FONT></STRONG></P>
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To generate a polygon, go to Draw menu and choose "Generate polygon" or
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press Ctrl+G combination keys. This action will generate a random simple
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polygon having the points coordinates between ranges (-1, 1). The old
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polygon is erased each time you generate a new one.
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<P align="left"><STRONG><FONT color="#3300cc" size="4"><A name="inp_p">
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</A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Create a new simple polygon</FONT></STRONG></P>
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Left click on the "Input simple polygon" layer. Be sure there is no layer
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activated in standard toolbar that eat events. To be sure, press the arrow
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button situated on the standard toolbar. Left Click anywhere on the
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application's drawing area (the black rectangle) to insert points in the
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polygon. You may press "Esc" key if you want to erase the last point.
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Once you have completed the polygon press the right click to close the
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polygon. To deactivate this layer, just press the arrow button situated
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on the same toolbar.
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<P align="left"><STRONG><FONT color="#3300cc" size="4">
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<A name="save_polygon"></A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Save the current polygon</FONT></STRONG></P>
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Press Ctrl+S combination keys or go to File menu, then choose "Save
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Polygon". A save file dialog will appear, the default name given is
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"polygon.cgal". You may change the name then press "Save" or hit "Enter"
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key. To cancel the save process just press Esc key.<br>
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<FONT SIZE=3 COLOR="#0000FF"> The polygon saved does not contain the
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visible area.</FONT>
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<P align="left"><STRONG><FONT color="#3300cc" size="4">
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<A name="load_polygon"></A></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="4"></FONT>
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</STRONG> </P>
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<P align="left"><STRONG><FONT color="#3300cc" size="3">
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Load an existing polygon</FONT></STRONG></P>
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Press Ctrl+L combination keys or go to File menu and choose "Load
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Polygon". A load file dialog will appear, having a filter that displays
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only the files with "cgal" extension. Choose a file then press "Open"
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button or hit "Enter" key.<br>
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<FONT SIZE=3 COLOR="#0000FF"> The polygon saved does not contain the
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visible area. The application will change the current visible area to
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fit the bounding box of the polygon.</FONT>
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<P align="left"><STRONG><FONT size="5"></FONT></STRONG> </P>
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<P align="left"><STRONG><FONT size="5"></FONT></STRONG> </P>
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<br>
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<hr>
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<!-- Created: Mon Jan 13 15:27:00 MET 2003 -->
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<!-- hhmts start -->
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Last modified: Fri May 16 15:19:48 MEST 2003
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<!-- hhmts end -->
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</body>
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</html>
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