diff --git a/LineSymbolizer.md b/LineSymbolizer.md index 67c4231..1c7ff28 100644 --- a/LineSymbolizer.md +++ b/LineSymbolizer.md @@ -1,65 +1,53 @@ - # LineSymbolizer A LineSymbolizer is used to render a "stroke" along a linear geometry. -|| *parameter* || *value* || *description* || *unit* || *default* || -|| stroke || CSS colour || A Color value such as 'green' or #A3D979 || - || "black" || -|| stroke-width || 0.0 - n || Width of line || pixels || 1.0 || -|| stroke-opacity || 0.0 - 1.0 || 1 is fully opaque while zero is fully transparent and .5 would be 50% transparent|| transparency || 1.0 || -|| stroke-linejoin || miter, round, bevel || See http://www.w3.org/TR/SVG/painting.html#propdef-stroke-linejoin for an example for each value || - || miter || -|| stroke-linecap || round, butt, square || See http://www.w3.org/TR/SVG/painting.html#propdef-stroke-linecap for an example for each value || - || butt || -|| stroke-dasharray || 0.0 - n,0.0 - n || A pair of length values [a,b], where (a) is the dash length and (b) is the gap length respectively. More than two values are supported as well (e.g. to start the line not with a stroke, but with a gap). || pixels || none || - +| *parameter* | *value* | *description* | *unit* | *default* | +----------------|---------|----------------|-------|------------| +| stroke | CSS colour | A Color value such as 'green' or #A3D979 | - | "black" | +| stroke-width | 0.0 - n | Width of line | pixels | 1.0 | +| stroke-opacity | 0.0 - 1.0 | 1 is fully opaque while zero is fully transparent and .5 would be 50% transparent| transparency | 1.0 | +| stroke-linejoin | miter, round, bevel | See http://www.w3.org/TR/SVG/painting.html#propdef-stroke-linejoin for an example for each value | - | miter | +| stroke-linecap | round, butt, square | See http://www.w3.org/TR/SVG/painting.html#propdef-stroke-linecap for an example for each value | - | butt | +| stroke-dasharray | 0.0 - n,0.0 - n | A pair of length values [a,b], where (a) is the dash length and (b) is the gap length respectively. More than two values are supported as well (e.g. to start the line not with a stroke, but with a gap). | pixels | none | ## Examples -[[Image(htdocs:/images/line_symbolizer_2.png)]] ### Default - -[[BR]] -[[Image(default_line_symbolizer.png)]] - - - #!xml - - - +```xml + +``` #### XML - - - #!xml - - #0000ff - 4 - - +```xml + + #0000ff + 4 + +``` #### Python - - #!python - l = LineSymbolizer(Color('green'),0.1) - l.stroke.add_dash(.1,.1) - l.stroke.opacity = .5 - +```python +l = LineSymbolizer(Color('green'),0.1) +l.stroke.add_dash(.1,.1) +l.stroke.opacity = .5 +``` Fetch all the possible methods like: - #!python - >>> from mapnik import LineSymbolizer - >>> dir(LineSymbolizer().stroke) +```python +>>> from mapnik import LineSymbolizer +>>> dir(LineSymbolizer().stroke) +``` #### C++ - - #!cpp - rule_type rule; - stroke ls; // This is the line symbolizer - ls.set_color(color(255, 255, 255); - ls.set_width(4); // width of the line in pixels - ls.set_line_join(mapnik::ROUND_JOIN); - ls.set_line_cap(mapnik::ROUND_CAP); - ls.add_dash(2.5, 1.0); - ls.set_opacity(0.5); - rule.append(ls); - - +```cpp +rule_type rule; +stroke ls; // This is the line symbolizer +ls.set_color(color(255, 255, 255); +ls.set_width(4); // width of the line in pixels +ls.set_line_join(mapnik::ROUND_JOIN); +ls.set_line_cap(mapnik::ROUND_CAP); +ls.add_dash(2.5, 1.0); +ls.set_opacity(0.5); +rule.append(ls); +``` \ No newline at end of file