{"id":106,"date":"2022-02-28T21:55:41","date_gmt":"2022-02-28T20:55:41","guid":{"rendered":"http:\/\/graphics32\/?page_id=106"},"modified":"2024-03-06T11:24:42","modified_gmt":"2024-03-06T10:24:42","slug":"naming-conventions","status":"publish","type":"page","link":"https:\/\/melander.dk\/graphics32\/naming-conventions\/","title":{"rendered":"Naming Conventions"},"content":{"rendered":"\n

The TBitmap32<\/a> class provides a large number of methods for single pixel access and single pixel width line drawing. While the prefix of these methods indicate what<\/em> they do (draw a line, access a pixel, etc.), the postfix denotes how<\/em> they behave. The methods can include one or more of the following postfixes:<\/p>\n\n\n\n

Postfix<\/th>Name<\/th>Description<\/th>Sample (magnified x4)<\/th>Examples<\/th><\/tr><\/thead>
(none)<\/td><\/td>Methods without modifiers offer maximum performance.
Lines and pixels are rendered without anti-aliasing and without color blending.
No clipping is performed so coordinates are expected to be within bitmap boundaries. Out of bounds coordinates can cause access violations and memory overwrites.<\/td>		\"\"<\/td>Line
HorzLine
Pixel
FillRect<\/td><\/tr>
S<\/td>Safe<\/td>Clipping is performed when coordinates extend beyond bitmap boundaries.
This modifier can be combined with any one<\/strong> of the anti-aliasing or transparent modifiers below (T, A, X or F) and also with the stippling (P) modifier.<\/td>		\"\"<\/td>LineS
LineToS
PixelS<\/td><\/tr>
T<\/td>Transparent<\/td>Semi-transparent pixels are merged onto the background image (though still without anti-aliasing).<\/td>\"\"<\/td>LineTS
LineToTS
FillRectTS<\/td><\/tr>
A<\/td>Anti-aliased<\/td>Uses a modified version of Bresenham\u2019s algorithm<\/a> known as Wu\u2019s antialiasing<\/a>.<\/td>\"\"<\/td>LineA
LineAS<\/td><\/tr>
X<\/td>Fixed<\/td>Coordinates are in fixed point (TFixed<\/code>) format.
These methods also employ a more sophisticated anti-aliasing algorithm than that used in the \u2018A\u2019 methods above.<\/td>		\"\"<\/td>LineX
LineXS
PixelXS<\/td><\/tr>
F<\/td>Float<\/td>Coordinates are in floating point (TFloat<\/code>) format.
These methods employ the same anti-aliasing algorithm used in the \u2018X\u2019 methods.<\/td>		\"\"<\/td>LineFS
PixelFS<\/td><\/tr>
P<\/td>Stippling<\/td>Lines are drawn using a stippling pattern<\/a>.
This modifier must be combined with either the ‘X’ or ‘F’ modifiers above.<\/td>		\"\"<\/td>LineFSP
LineXSP<\/td><\/tr><\/tbody>
<\/td><\/td>For lines, all the methods listed above draw line segments that are a single pixel wide<\/strong>.
To draw thicker lines, see the Polyline<\/a> and PolyPolyline<\/a> functions in the GR32_Polygons<\/a> unit. Those functions also produce better anti-aliased blending over fully transparent backgrounds (when compared with X & F modified methods above).<\/td>		\"\"<\/td><\/td><\/tr><\/tfoot><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

The TBitmap32 class provides a large number of methods for single pixel access and single pixel width line drawing. While the prefix of these methods indicate what they do (draw a line, access a pixel, etc.), the postfix denotes how<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-106","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/pages\/106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/comments?post=106"}],"version-history":[{"count":12,"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/pages\/106\/revisions"}],"predecessor-version":[{"id":436,"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/pages\/106\/revisions\/436"}],"wp:attachment":[{"href":"https:\/\/melander.dk\/graphics32\/wp-json\/wp\/v2\/media?parent=106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}