Hi:
I solve the problem by set the property:
System.setProperty("org.geotools.referencing.forceXY", "true");
I am not sure why but it works.
On Thu, Jul 3, 2014 at 11:20 AM, maven apache <apachemav...@gmail.com>
wrote:
> Hi Oleksandr Huziy:
>
> I am afraid I can not share the file because of the company policy.
>
> However you remind me to check the data. And I copy just one feature and
> save it as another shapfile, and I can get the image.
>
> But the original file have 20,000 + features, so I can not find which one
> cause the problem.
>
> And, I found that the rendered image is not the same:
>
> http://pbrd.co/VGGUkU
>
> The image rendered by mapnik is right.
>
> It seems that the image rendered by geotools is rotated and mirrored. :(
>
>
> On Thu, Jul 3, 2014 at 10:22 AM, Oleksandr Huziy <guziy.sa...@gmail.com>
> wrote:
>
>> Could you please share your shape file for testing?
>>
>> It seems that your calculated box is very small, try to zoom out a
>> bit.... If I remember correctly there is a precision limit in geotools, it
>> is certainly used for operations, not sure what happens when rendering....
>>
>> Cheers
>>
>>
>> 2014-07-02 20:08 GMT-04:00 maven apache <apachemav...@gmail.com>:
>>
>> I have checked the bounds, and I am sure they are the same.
>>>
>>> To make it sure again:
>>>
>>> System.out.println("map bounds:" + map.getMaxBounds());
>>> double[] box = getWGS84LngLat(9275, 21747, 16);
>>> System.out.println(String.format("calculated box:%s %s %s %s", box[0],
>>> box[1], box[2], box[3]));
>>> ReferencedEnvelope bbox = new ReferencedEnvelope(box[0], box[2],
>>> box[1], box[3], CRS.decode("EPSG:4326"));
>>> System.out.println("render area:" + bbox);
>>> print:
>>> map bounds:ReferencedEnvelope[-154.80490576000002 :
>>> -154.20500785700011, 30.07774782000007 : 30.399098064000043]
>>> calculated box:-154.52545166015625 30.267333984375 -154.522705078125
>>> 30.27008056640625
>>> render area:ReferencedEnvelope[-154.52545166015625 : -154.522705078125,
>>> 30.267333984375 : 30.27008056640625]
>>>
>>>
>>> The calculated box is inside the map bounds. And when I construct the
>>> ReferencedEnvelope, I use the (minx,maxx,miny,maxy). I think the order is
>>> right.
>>>
>>> BTW, I use mapnik to generate image for this same box, and it worked.
>>>
>>> So I think maybe I miss anything here?
>>>
>>>
>>>
>>> On Wed, Jul 2, 2014 at 6:51 PM, Oleksandr Huziy <guziy.sa...@gmail.com>
>>> wrote:
>>>
>>>> Hi:
>>>>
>>>> Could you print map.getMaxBounds() and box and compare them? My guess
>>>> is that the projection in your shape file is not epsg:4326 or something
>>>> wrong with your order maybe it expects lat/lon order ie {bottom, left, top,
>>>> right}??
>>>>
>>>> Cheers
>>>>
>>>>
>>>> 2014-07-02 4:48 GMT-04:00 maven apache <apachemav...@gmail.com>:
>>>>
>>>>> Hi;
>>>>>
>>>>> I am trying to generate image according to the tile coordinate by
>>>>> geotools, this is the code:
>>>>>
>>>>> * public static void main(String[] args) throws IOException,
>>>>> FactoryException, CQLException {*
>>>>> * long st = System.currentTimeMillis();*
>>>>> * FileDataStore store = new ShapefileDataStore(new
>>>>> File("data/landuase.shp").toURI().toURL());*
>>>>>
>>>>> * Style style = createPolygonStyle();*
>>>>> * Layer layer = new FeatureLayer(store.getFeatureSource(), style);*
>>>>>
>>>>> * MapContent map = new MapContent();*
>>>>> * map.addLayer(layer);*
>>>>>
>>>>>
>>>>> * double[] box = getWGS84LngLat(9275, 21747, 16);*
>>>>> * ReferencedEnvelope bbox = new ReferencedEnvelope(box[0], box[2],
>>>>> box[1], box[3], CRS.decode("EPSG:4326"));*
>>>>>
>>>>>
>>>>> * //arender*
>>>>> * Rectangle paintArea = new Rectangle(0, 0, 256, 256);*
>>>>> * BufferedImage image = new BufferedImage(paintArea.width,
>>>>> paintArea.height, BufferedImage.TYPE_INT_RGB);*
>>>>> * Graphics2D gr = image.createGraphics();*
>>>>> * gr.setPaint(Color.WHITE);*
>>>>> * gr.fill(paintArea);*
>>>>>
>>>>>
>>>>> * GTRenderer renderer = new StreamingRenderer();*
>>>>> * renderer.setMapContent(map);*
>>>>> * renderer.paint(gr, paintArea, bbox);*
>>>>>
>>>>>
>>>>> * File fileToSave = new File("D:/t.png");*
>>>>> * ImageIO.write(image, "png", fileToSave);*
>>>>>
>>>>> * long ed = System.currentTimeMillis();*
>>>>> * System.out.println("complete:" + (ed - st));*
>>>>> * }*
>>>>> * private static double[] getWGS84LngLat(int x, int y, int zoom) {*
>>>>> * double padding = 0;*
>>>>> * double left = (x - padding) * (360.0 / (1 << (zoom + 1))) - 180;*
>>>>> * double right = (x + 1 + padding) * (360.0 / (1 << (zoom + 1))) -
>>>>> 180;*
>>>>> * double top = 90 - (y - padding) * (180.0 / (1 << zoom));*
>>>>> * double bottom = 90 - (y + 1 + padding) * (180.0 / (1 << zoom));*
>>>>> * return new double[]{left, bottom, right, top};*
>>>>> * }*
>>>>>
>>>>> However the above code does not work for the calculated bbox. Once I
>>>>> set:
>>>>>
>>>>> bbox = map.getMaxBounds()
>>>>>
>>>>> I will get the correct result.
>>>>>
>>>>> What's the problem?
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Open source business process management suite built on Java and Eclipse
>>>>> Turn processes into business applications with Bonita BPM Community
>>>>> Edition
>>>>> Quickly connect people, data, and systems into organized workflows
>>>>> Winner of BOSSIE, CODIE, OW2 and Gartner awards
>>>>> http://p.sf.net/sfu/Bonitasoft
>>>>> _______________________________________________
>>>>> GeoTools-GT2-Users mailing list
>>>>> GeoTools-GT2-Users@lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Sasha
>>>>
>>>
>>>
>>
>>
>> --
>> Sasha
>>
>
>
------------------------------------------------------------------------------
Open source business process management suite built on Java and Eclipse
Turn processes into business applications with Bonita BPM Community Edition
Quickly connect people, data, and systems into organized workflows
Winner of BOSSIE, CODIE, OW2 and Gartner awards
http://p.sf.net/sfu/Bonitasoft
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