javascript - Using an PNG or JPEG for Map with OpenLayers (Scale/Zoom Problem) -


I am using an image to display my map with OpenLayers. My JS code looks like this: 

  map = new openlayer Map ('map'); Var option = {numZoomLevels: 7, isBaseLayer: true,}; Var globe = new open layer Layers Image ('Globe ESA', 'http://upload.wikimedia.org/wikipedia/commons/0/07/World_map_blank_black_lines_4500px.gif', new open layer bounce (-180, -90, 180, 90), new Open Layers Size (4500, 2234), Options); Map.addLayers (globe); Marker = New OpenLayer Layers Marker ("marker"); Map.addLayer (marker); Map.addControl (new OpenLayer control.layerviewer); Map.zoomToMaxExtent (); Map.addControl (new OpenLayer control.mouseposa ());

My CSS is: 

  #map {width: 640px; Height: 480px; Limit: 1px solid black; }

But I can not get the open layer to scale the larger image. It is always displayed at full resolution and I can not zoom out to display the whole world. help please.

You have to set the image size because it should be shown when fully zoomed out.

High Globe = New Open Layer. Layers Image ('Globe ESA', 'http://upload.wikimedia.org/wikipedia/commonS/0/07/World_map_blank_black_lines_4500px.gif', New Open Layers.Bound (-180, -90, 180, 90), New Open Layers size (1125,558), option);

I changed the size to a quarter of size size. If you want, you can zoom in more.


Comments

Post a Comment

Popular posts from this blog

python - Overriding the save method in Django ModelForm -

I'm having trouble overriding a ModelForm save method. I get this error I'm: Exception type: TypeErier Exception Value: Save () found an unexpected keyword argument 'committed' My intentions include a form 3 fields Submit several values ​​for, then create an object for each combination of those areas, and to save each object file models.py class collarsult type (models.Model): id = model. AutoField (db_column = 'icontact_result_code_type_id', primary_key = true) callResult = models.ForeignKey ( 'CallResult', db_column = 'icontact_result_code_id') campaign = models.ForeignKey ( 'campaign', db_column = 'icampaign_id') CALLTYPE = models.ForeignKey ( 'CALLTYPE', db_column = 'icall_type_id') agent = models.BooleanField (db_column = 'bagent', default = true) teamLeader = models.BooleanField (db_column = 'bTeamLeader', default = true) active = models.BooleanField (db_column = Django.form...
Read more

html - CSS autoheight, but fit content to height of div -

I have a div in which there are three children- div in the left and middle div: float: left while true: float: true because it is my layout Actually will spoil, I've used ClearFix Hack: .cf {zoom: 1; }. Cf: First,. Cf: {content: ""; Display: Table; }. Cf: After {clear: both; } It still works, but I want to be the right div an indicator. So it should fill 100% of the parent unit of height. How can I complete this? PS is the full code: & Lt; / Div & gt; & Lt; Div class = "mobile_content" & gt; & Lt; H5 & gt; {{Data.titel}} & lt; / H5> & Lt; Table & gt; & Lt; TR & gt; & Lt; Th & gt; Komponist: & lt; / Th & gt; & Lt; TD & gt; {{Data.komponist}} & lt; / TD & gt; & Lt; / TR & gt; & Lt; TR & gt; & Lt; Th & gt; Instrument: & lt; / Th & gt; & Lt; TD & gt; {{Data.instrumente}} & lt; / TD & gt; & Lt; / TR & gt;...
Read more

qt - How to prevent QAudioInput from automatically boosting the master volume to 100%? -

I have been trying to use Qt5 multimedia to record audio with QAudioInput, however, when I see If QAudioInput is started, it increases the master volume of my sound device to 100%. How can I prevent QAudioInput from changing the master volume? My current development platform is Linux with PalsAdio (with flat audio disabled). How can I use QAudioInput : QAudioDeviceInfo device_info = QAudioDeviceInfo :: defaultInputDevice (); QAudio format format; Format.setSampleRate (44100); Format.setChannelCount (1); Format.setSampleSize (16); Format.setCodec ("Audio / PCM"); Format.setSampleType (QAudioFormat :: SignedInt); Format.setByteOrder (QAudioFormat :: LittleEndian); Std :: cout & lt; & Lt; Device_info.deviceName (). ToUtf8 (). ConstData () & lt; & Lt; Std :: endl; QAudioInput * default_device = new QAudioInput (device_info, format); QIODevice * default_io_device = default_device-> Start (); a QAudioInput.setVolume () method is not you I ...
Read more