Re: [Geotools-gt2-users] Style creation from scratch

[Adrian C. <ac...@gm...>]

Thanks Tom,

That was exactly what was needed. I'll save the details for my work on
the style documentation.

--adrian

On Sun, 2006-07-30 at 08:38 -0500, Tom Howe wrote:
> Sorry, accidently clicked send before I was done.
> 
>  StyleBuilder builder = new StyleBuilder();
>  Mark mark = builder.createMark("square", Color.BLACK);
>  Graphic g = builder.createGraphic(null,mark,null);
>  Symbolizer s = builder.createPointSymbolizer(g);
>  Style style = builder.createStyle(s);
> 
> this will automatically create the FeatureTypeStyle, Rule hierarchy
> for you.  The rule will always apply and the FeatureType will not be
> specific otherwise, you could do:
> 
>  StyleBuilder builder = new StyleBuilder();
>  Mark mark = builder.createMark("square", Color.BLACK);
>  Graphic g = builder.createGraphic(null,mark,null);
>  Symbolizer s = builder.createPointSymbolizer(g);
>  Rule r = builder.createRule(s);
>  rule.setFilter(. . . ) //If you want to set a filter on the rule.
>  FeatureTypeStyle fts = builder.createFeatureTypeStyle("featureName", r);
> Style s = builder.createStyle();
> s.setFeatureTypeStyles(new FeatureTypeStyles[]{fts};
> 
> or if you have multiple rules:
> 
>  StyleBuilder builder = new StyleBuilder();
>  Mark mark = builder.createMark("square", Color.BLACK);
>  Graphic g = builder.createGraphic(null,mark,null);
>  Symbolizer s = builder.createPointSymbolizer(g);
> Rule[] rules = new Rule[];
> rules[0] = builder.createRule(s);
> . . . create more rules for your style. . .
> Style s = builder.createStyle(rules);
> 
> this should create a style with multiple rules.  The key here is that
> FeatureTypeStyle is automatically created for you by the builder.  In
> fact the simplest way to do this is:
> 
>  StyleBuilder builder = new StyleBuilder();
> Style s = builder.createStyle(builder.createPointSymbolizer());
> 
> This will create a style that draws the point with the default
> symbolizer (which I believe is a dark gray square).
> 
> Anyhoo, sorry for the verbose email.
> 
> -Tom
> 
> On 7/30/06, Tom Howe <tur...@gm...> wrote:
> > Here's one way to do it:
> >
> > StyleBuilder builder = new StyleBuilder();
> > Mark mark = builder.createMark("square", Color.BLACK);
> > Graphic g = builder.createGraphic(null,mark,null);
> > Symbolizer s = builder.createPointSymbolizer(g);
> > Rule rule = builder.createRule(s);
> >
> >
> > On 7/30/06, Adrian Custer <ac...@gm...> wrote:
> > > hey all,
> > >
> > > I'd like to display a point (London) on the screen (via JMapPane).
> > >
> > > I have created the FeatureSource for the point feature. I need to create
> > > the Style and then I can add the two via:
> > >         context.addLayer(memFS,memStyl);
> > >
> > > So I'm trying to create a style for a point. As I understand it, the
> > > hierarchy is:
> > >   Style
> > >     FeatureTypeStyle
> > >       Rule
> > >         Symbolizer
> > >
> > > so here's what I have so far:
> > >         // Create the memStyl from scratch
> > >         StyleBuilder sb = new StyleBuilder();
> > >         memStyl = sb.createStyle();
> > >         PointSymbolizer ptSymbl = sb.createPointSymbolizer();
> > >         FeatureTypeStyle ftStyl = sb.createFeatureTypeStyle(ptSymbl);
> > >         memStyl.addFeatureTypeStyle(ftStyl);
> > >
> > > and an earlier attempt:
> > >         org.geotools.styling.Style s = sf.getDefaultStyle();
> > >         FeatureTypeStyle fts = sf.createFeatureTypeStyle();
> > >         fts.setFeatureTypeName("Metropolis");
> > >         s.addFeatureTypeStyle(fts);
> > >         Rule r = sf.createRule();
> > >         r.setName("MetroRule");
> > >
> > > I can see that I haven't asked anywhere for a glyph (a graphic?) but I'm
> > > not at all sure how to do this.
> > >
> > > Any help would be appreciated,
> > >
> > > --adrian
> > >
> > >
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