Java Swing moving java.awt.Shape -

-

we have application displays kind of map. swing application draw set of java.awt.shapes java.awt.graphics2d#draw(shape) , fine.

and now, have extend app allow our users editing (moving shapes on) map. there no translate or move methods on java.awt.shapes. can't change position (java.awt.point) of shape.

i have tried override java.awt.shape#getpathiterator in order apply translation matches shape position. it's tricky because method accept transformation have merge , because correct pathiterator should start @ (0, 0) because relative shape position.

and anyway, won't work because seems graphics2d don't use method draw java.awt.shape.

so now, i'm feeling bit lost. solution let shapes drawn themselves, have rewrite part of application. that's not problem have know best solution :

  1. find trick move java.awt.shape seems best solution can't figure how that.

  2. change app have self drawing shapes nice have compute myslef contains , other more complex methods.

but there no translate or move methods on java.awt.shapes.

see affinetransform.createtransformedshape(shape), which:

returns new shape object defined geometry of specified shape after has been transformed transform.

of course, there graphics2d.translate(x,y) ..

translates origin of graphics2d context point (x, y) in current coordinate system. ..


Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile: ...
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo...
Read more