Dear Larry,
I have managed to study the codes you gave me earlier and
able to generate my circles. The problem now is that my radius is in the
form of meters. So what must I do to adjust it. So time being I just put the
radius value as 10 as the codes below. Thank you.
var centerPoint = new GLatLng(getDetails[1], getDetails[0])
var myCircle = new GPolygon(drawCircle(centerPoint,10,map));
map.addOverlay(myCircle);
map.setCenter(centerPoint, 8);
On Mon, Aug 23, 2010 at 9:55 AM, ss ss <[email protected]> wrote:
> Dear Larry,
> Yes this is how I want I dont want the other stroke line in
> the circle. Ok give me some time to go through the codes then I will get
> back to you. Thank you once again.
>
> On Mon, Aug 23, 2010 at 9:21 AM, [email protected] <
> [email protected]> wrote:
>
>> On Aug 22, 6:09 pm, ss ss <[email protected]> wrote:
>> > Dear Larry,
>> > I have put the link at this sitehttp://
>> 116.0.102.219/maps/overlappingPolygons.html. Can you have a look?
>>
>> What was the question?
>>
>> Are you asking about reducing the "stroke" size?
>> http://www.geocodezip.com/overlappingPolygonsNoStroke.asp
>>
>> -- Larry
>>
>> >
>> > On Sun, Aug 22, 2010 at 11:31 PM, [email protected] <
>> [email protected]
>> >
>> > > wrote:
>> > > On Aug 22, 8:03 am, ss ss <[email protected]> wrote:
>> > > > Dear Larry,
>> > > > I have actually stream down the codes to only one
>> > > > circle. Below is the codes.
>> >
>> > > 1. Please post a link not code.
>> > > 2. Please ask a question (if the question is still "how do I avoid
>> > > it?", I can see it from the code you posted, I need a link for that).
>> >
>> > > -- Larry
>> >
>> > > > function createPolygon(polygon, html) {
>> > > > var infoHtml = html;
>> > > > polys.push(polygon);
>> > > > GEvent.addListener(polygon, "click", function(overlaylatlng) {
>> > > > if(overlaylatlng){
>> > > > map.openInfoWindow(overlaylatlng, infoHtml);
>> > > > }
>> > > > });}
>> >
>> > > > function drawCircle(point, radius, map) {
>> > > > var d2r = Math.PI / 180; // degrees to radians
>> > > > var r2d = 180 / Math.PI; // radians to degrees
>> > > > var earthsradius = 3963; // 3963 is the radius of the earth in miles
>> > > > var points = 64;
>> > > > // find the raidus in lat/lon
>> > > > var rlat = (radius / earthsradius) * r2d;
>> > > > var rlng = rlat / Math.cos(point.lat() * d2r);
>> >
>> > > > var extp = new Array();
>> > > > for (var i=0; i < points+1; i++) // one extra here makes sure we
>> > > connect
>> > > > the
>> > > > {
>> > > > var theta = Math.PI * (i / (points/2));
>> > > > ex = point.lng() + (rlng * Math.cos(theta)); // center a +
>> radius x
>> > > *
>> > > > cos(theta)
>> > > > ey = point.lat() + (rlat * Math.sin(theta)); // center b +
>> radius y
>> > > *
>> > > > sin(theta)
>> > > > extp.push(new GPoint(ex, ey));
>> > > > }
>> > > > return extp;}
>> >
>> > > > // Display the map, with some controls and set the initial
>> location
>> > > > var map = new GMap2(document.getElementById("map"));
>> > > > map.addControl(new GLargeMapControl());
>> > > > map.addControl(new GMapTypeControl());
>> > > > map.setCenter(new GLatLng(0,0),8);
>> >
>> > > > var color =["#000000", "#800000","#F00000", "#008000", "#00F000",
>> > > > "#000080", "#0000F0","#808000", "#F0F000",
>> "#008080"];
>> > > > for (var i=1; i < 2; i++) {
>> > > > createPolygon(new GPolygon(drawCircle(new GLatLng(0,0),
>> (10-i)*10,
>> > > > map), color[i], 10,i/10, color[i], i/10), "polygon "+ i);
>> > > > map.addOverlay(polys[polys.length-1]);
>> > > > }
>> >
>> > > > On Sun, Aug 22, 2010 at 10:57 PM, [email protected] <
>> > > [email protected]
>> >
>> > > > > wrote:
>> > > > > On Aug 22, 7:13 am, ss ss <[email protected]> wrote:
>> > > > > > Dear Larry,
>> > > > > > How about version 3 can I use is it?
>> >
>> > > > > Sure.
>> >
>> > > > > > How to use it?
>> >
>> > > > > Just like v2, read the documentation, just be wary, it is similar
>> to
>> > > > > v2 but not the same.
>> >
>> > > > > > Ok in that example I notice there is two line one is inside the
>> thick
>> > > one
>> > > > > > how to avoid it.
>> >
>> > > > > I'm not sure what you mean by that. The arguments of the polygon
>> > > > > constructor are documented. Where is your map that shows the
>> behavior
>> > > > > that you don't want and what have you tried to fix it?
>> >
>> > > > > -- Larry
>> >
>> > > > > > Below is the code
>> > > > > > createPolygon(new GPolygon(drawCircle(new GLatLng(0,0),
>> (10-i)*10,
>> > > map),
>> > > > > > color[i], 10,i/10, color[i], i/10), "polygon "+ i);
>> >
>> > > > > > Ok about the second question for now to know the lat long I will
>> > > split
>> > > > > the
>> > > > > > string for e.g. POINT(103.92508506774902 1.461838406932495). So
>> I am
>> > > > > > wondering is there any other better method? Thank you.
>> >
>> > > > > > On Sun, Aug 22, 2010 at 9:36 PM, [email protected]
>> > > > > > <[email protected]>wrote:
>> >
>> > > > > > > On Aug 22, 3:05 am, ss <[email protected]> wrote:
>> > > > > > > > Dear All,
>> > > > > > > > I can read this value from my database for a
>> circle
>> > > geo
>> > > > > > > > fence. Thus I also have a radius value. What is the best
>> method
>> > > to
>> > > > > > > > draw a perfect circle as I have gone to this sitehttp://
>> > > > > > >www.geocodezip.com/overlappingPolygons.aspbutthecurveis not
>> > > > > > > > smooth?
>> >
>> > > > > > > In v2 you can't really draw a "perfect circle", the
>> approximation
>> > > used
>> > > > > > > in that page is a 32 sided polygon:
>> > > > > > > var points = 32;
>> >
>> > > > > > > The more points, the closer to a circle it will be, but the
>> more
>> > > time
>> > > > > > > it will take to draw.
>> >
>> > > > > > > > Any idea the format I am reading is for
>> > > > > > > > e.g.POINT(103.92508506774902 1.461838406932495).
>> >
>> > > > > > > That shouldn't have anything to do with the circle. Or is
>> this a
>> > > > > > > second question?
>> >
>> > > > > > > -- Larry
>> >
>> > > > > > > --
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