I took the coordinates from your earlier code and tried it out: override protected function createMap():void { var mc:MercatorProjection = new MercatorProjection(); mc.initialize(); var a:Array = [ [151.25715360000004, -33.743317043500042 ], [151.25985827199997,-33.743840223500001 ], [151.26121619200012, -33.74746011849993 ], [151.269228, -33.74990100849999 ], [151.26887100800002, -33.757243991500047], [ 151.27524460799998, -33.756977721 ], [ 151.28052790400011,-33.75872719199981 ], [ 151.27875936, -33.768415808499981 ], [151.27282256000012, -33.767621917999975 ], [ 151.27024985600008,-33.77462350199994 ], [ 151.27552054400007, -33.779516363499738 ], [151.27530051200017, -33.781854430499834 ], [ 151.26530544000002,-33.780174667499921 ], [ 151.26095520000001, -33.777029796999898 ], [151.259648416, -33.779054695999776 ], [ 151.25597475200004,-33.779087477999894 ], [ 151.25556144000006, -33.783829046499761 ], [151.24337900800003, -33.781951999499825 ], [ 151.23829500800002,-33.778761008499828 ], [ 151.23245721600017, -33.762912705999895 ], [151.23388588800003, -33.754605225500029 ], [ 151.24911699200015,-33.756704993999904 ], [ 151.24983971200004, -33.752049450499953 ], [151.24830732800024, -33.751826433000019 ], [ 151.24833936000005,-33.748172997499921 ], [ 151.25159628799997, -33.74994213399998 ], [151.25054374400008, -33.746457899499944 ], [ 151.25377328000013,-33.746925597999962 ], [ 151.25369952000005, -33.74283635799992 ], [151.25715360000004, -33.743317043500042 ]] this.graphics.clear(); this.graphics.lineStyle(2,0xFF0000); this.graphics.beginFill(0x999999); for(var i:int = 0; i < a.length-1; i++) { var ltlg:Array = a[i]; var p:Point = new Point(); p = mc.project(ltlg[0],ltlg[1], p); this.graphics.lineTo(p.x,p.y); } this.graphics.endFill(); }
The resultant shape looks pretty much like a straight line, though. Are you sure 151.25715360000004, -33.743317043500042 is actually a valid lat/long co-ordinate? I am not able to plot it on google maps. Thanks, Om On Wed, Jan 13, 2016 at 1:31 PM, OmPrakash Muppirala <bigosma...@gmail.com> wrote: > Give me the list of lat/long co-ordinates and the end result shape they > should look like. I will try out a few things and see we can make this > work. > > Thanks, > Om > > On Wed, Jan 13, 2016 at 7:36 AM, OmPrakash Muppirala <bigosma...@gmail.com > > wrote: > >> >> On Jan 13, 2016 4:36 AM, "Deepak MS" <megharajdee...@gmail.com> wrote: >> > >> > Ok. But it isn't converting lat\long values to expected path data >> > coordinates I believe. >> >> What's happening? Can you post the relevant code and output? >> >> Thanks, >> Om >> >> > >> > On Wed, Jan 13, 2016 at 5:37 PM, OmPrakash Muppirala < >> bigosma...@gmail.com> >> > wrote: >> > >> > > Yes, it is lat and long. Out is the output point which should get >> updated >> > > during the projection. >> > > >> > > Thanks, >> > > Om >> > > On Jan 13, 2016 3:10 AM, "Deepak MS" <megharajdee...@gmail.com> >> wrote: >> > > >> > > > Thanks Om. >> > > > >> > > > I tried that library with following code: >> > > > var mc:MercatorProjection = new MercatorProjection(); >> > > > for(var i:int = 0; i < a.length; i++) // a here is >> array of >> > > > arrays - [ [ 151.25, -33.74 ],[ 151.25, -33.74 ] ......] >> > > > { >> > > > var ltlg:Array = a[i]; >> > > > var p:Point = mc.project(ltlg[0],ltlg[1], new >> Point()); >> > > > //p.x will always be same as lat value - 151.25 and >> p.y >> > > > will always be NaN >> > > > >> > > > } >> > > > >> > > > I looked at MercatorProjection.project() method: >> > > > override public function project(lam:Number, phi:Number, >> out:Point):Point >> > > > { >> > > > if (spherical) { //spherical = false >> > > > out.x = scaleFactor * lam; //scaleFactor = 1 >> > > > out.y = scaleFactor * >> > > Math.log(Math.tan(MapMath.QUARTERPI + >> > > > 0.5 * phi)); >> > > > } else { >> > > > out.x = scaleFactor * lam; >> > > > out.y = -scaleFactor * Math.log(MapMath.tsfn(phi, >> > > > Math.sin(phi), e)); >> > > > } >> > > > return out; >> > > > } >> > > > >> > > > I'm not sure what Iam, phi and out parameters are. I assumed Iam is >> lat >> > > and >> > > > phi would be lng. out is used to return the value. I don't know why >> is it >> > > > an input parameter here as out itself is the return value. >> > > > >> > > > Am I passing lat, lng values correctly to project() ? >> > > > >> > > > >> > > > >> > > > >> > > > On Wed, Jan 13, 2016 at 1:09 PM, OmPrakash Muppirala < >> > > bigosma...@gmail.com >> > > > > >> > > > wrote: >> > > > >> > > > > Moving thread to dev@. Users@ in bcc in case someone else is >> > > interested >> > > > > in >> > > > > this. >> > > > > >> > > > > The d in the path node is a stringified set of points which are >> > > connected >> > > > > by lines. M is for moveTo, L is for lineTo and Z signifies >> closing the >> > > > > path back to the first point. >> > > > > >> > > > > Each country (or region) has its own shape which is denoted by >> the d >> > > > > string. The series of path objects is sufficient to draw all the >> > > > countries >> > > > > using a stroke and a fill. >> > > > > >> > > > > Looking at your coordinates, it looks like a closed polygon. >> > > > > You might want to try to use Mercator projection to project the >> lat >> > > long >> > > > > coordinates to cartesian coordinates. >> > > > > Here is a very straightforward implementation of this in AS3: >> > > > > * >> > > > > >> > > > >> > > >> https://bitbucket.org/gka/as3-proj/src/ec91cdd098a15ab1e2cbf5bbd3a3221a36507685/net/vis4/map/proj/MercatorProjection.as?at=default&fileviewer=file-view-default >> > > > > < >> > > > > >> > > > >> > > >> https://bitbucket.org/gka/as3-proj/src/ec91cdd098a15ab1e2cbf5bbd3a3221a36507685/net/vis4/map/proj/MercatorProjection.as?at=default&fileviewer=file-view-default >> > > > > >* >> > > > > >> > > > > Basically for each lat/long co-ordinate in your 'coordinates' >> array, >> > > call >> > > > > MercatorProjection.project(), which should give you a Point >> object. >> > > Use >> > > > > these series of Points to draw a shape, which represents your >> > > > State/region. >> > > > > >> > > > > Do let me know if you need any further help >> > > > > >> > > > > Thanks, >> > > > > Om >> > > > > On Jan 12, 2016 10:06 PM, "Deepak MS" <megharajdee...@gmail.com> >> > > wrote: >> > > > > >> > > > > > Moving following conversation to this separate thread. >> > > > > > >> > > > > > >> > > > > > >> > > > > >> > > > >> > > >> http://apache-flex-development.2333347.n4.nabble.com/FlexJS-US-States-Map-example-pure-AS3-td48006.html >> > > > > > >> > > > > > Hi Om, >> > > > > > I had one question. >> > > > > > I could see the following path in the worldmap.xml file: >> > > > > > <path fill="#CEE3F5" stroke="#6E6E6E" stroke-width="0.4" id="UM" >> > > > > > d="M25.4,206.4 L25.4,206.4 L25.3,206.4 L25.4,206.4 Z"> >> > > > > > <desc> >> > > > > > <name>United States Minor Outlying Islands</name> >> > > > > > <labelrank>5</labelrank> >> > > > > > <country-abbrev>U.S. MOI</country-abbrev> >> > > > > > <subregion>Seven seas (open ocean)</subregion> >> > > > > > <region-wb>East Asia & Pacific</region-wb> >> > > > > > <iso-a3>UMI</iso-a3> >> > > > > > <iso-a2>UM</iso-a2> >> > > > > > <woe-id>28289407</woe-id> >> > > > > > <continent>North America</continent> >> > > > > > <hc-middle-x>0.57</hc-middle-x> >> > > > > > <hc-middle-y>0.58</hc-middle-y> >> > > > > > <hc-key>um</hc-key> >> > > > > > <hc-a2>UM</hc-a2> >> > > > > > </desc> >> > > > > > </path> >> > > > > > >> > > > > > What is the path data in there? >> > > > > > >> > > > > > I would be getting the boundary data in form of geojson which >> would >> > > > have >> > > > > > latitude\longitude points. Something like this: >> > > > > > >> > > > > > { "type": "Feature", "properties": { "BrickCode_": "21000", >> "State": >> > > > > "NSW", >> > > > > > "ML_Code": "ML108" }, "geometry": { "type": "Polygon", >> > > "coordinates": [ >> > > > > [ [ >> > > > > > 151.25715360000004, -33.743317043500042 ], [ 151.25985827199997, >> > > > > > -33.743840223500001 ], [ 151.26121619200012, -33.74746011849993 >> ], [ >> > > > > > 151.269228, -33.74990100849999 ], [ 151.26887100800002, >> > > > > -33.757243991500047 >> > > > > > ], [ 151.27524460799998, -33.756977721 ], [ 151.28052790400011, >> > > > > > -33.75872719199981 ], [ 151.27875936, -33.768415808499981 ], [ >> > > > > > 151.27282256000012, -33.767621917999975 ], [ 151.27024985600008, >> > > > > > -33.77462350199994 ], [ 151.27552054400007, -33.779516363499738 >> ], [ >> > > > > > 151.27530051200017, -33.781854430499834 ], [ 151.26530544000002, >> > > > > > -33.780174667499921 ], [ 151.26095520000001, >> -33.777029796999898 ], [ >> > > > > > 151.259648416, -33.779054695999776 ], [ 151.25597475200004, >> > > > > > -33.779087477999894 ], [ 151.25556144000006, >> -33.783829046499761 ], [ >> > > > > > 151.24337900800003, -33.781951999499825 ], [ 151.23829500800002, >> > > > > > -33.778761008499828 ], [ 151.23245721600017, >> -33.762912705999895 ], [ >> > > > > > 151.23388588800003, -33.754605225500029 ], [ 151.24911699200015, >> > > > > > -33.756704993999904 ], [ 151.24983971200004, >> -33.752049450499953 ], [ >> > > > > > 151.24830732800024, -33.751826433000019 ], [ 151.24833936000005, >> > > > > > -33.748172997499921 ], [ 151.25159628799997, -33.74994213399998 >> ], [ >> > > > > > 151.25054374400008, -33.746457899499944 ], [ 151.25377328000013, >> > > > > > -33.746925597999962 ], [ 151.25369952000005, -33.74283635799992 >> ], [ >> > > > > > 151.25715360000004, -33.743317043500042 ] ] ] } } >> > > > > > >> > > > > > I'm sure that we cannot use lat\lng points directly in path >> data. >> > > But I >> > > > > > want to know based on what can we convert these data points to >> path >> > > > data. >> > > > > > >> > > > > >> > > > >> > > >> > >