topic String rasterPath = Environment.getExternalStorageDirectory().getPath() + &quot;/raster/SM0803.tif&quot;; FileRasterSource rasterSource=null; try { rasterSource = new FileRasterSource(rasterPath); //rasterSource.project(mMapV in Developers Questions https://community.esri.com/t5/developers-questions/string-rasterpath-environment/m-p/375588#M2440 <HTML><HEAD></HEAD><BODY><PRE class="lia-code-sample line-numbers language-none">String rasterPath = Environment.<SPAN>getExternalStorageDirectory</SPAN>().getPath() + <SPAN style="color: #6a8759;">"/raster/SM0803.tif"</SPAN><SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>FileRasterSource rasterSource=<SPAN style="color: #cc7832;">null; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try </SPAN>{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; rasterSource = <SPAN style="color: #cc7832;">new </SPAN>FileRasterSource(rasterPath)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="color: #808080;">//rasterSource.project(mMapView.getSpatialReference()); </SPAN><SPAN style="color: #808080;"> </SPAN><SPAN style="color: #808080;"> </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; StretchParameters stretchParams = new StretchParameters.MinMaxStretchParameters(); </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stretchParams.setGamma(2.0f); </SPAN><SPAN style="color: #808080;">// </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; StretchRenderer renderer = new StretchRenderer(); </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; renderer.setStretchParameters(stretchParams); </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; rasterLayer.setRenderer(renderer); </SPAN><SPAN style="color: #808080;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>RasterLayer rasterLayer = <SPAN style="color: #cc7832;">new </SPAN>RasterLayer(rasterSource)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>Envelope env = rasterLayer.getFullExtent()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>xmax=env.getXMax()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>xmin = env.getXMin()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>ymax = env.getYMax()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>ymin = env.getYMin()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;"> </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="color: #9876aa;">mMapView</SPAN>.addLayer(rasterLayer)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN>rasterSource.getFormat())<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN>String.<SPAN>valueOf</SPAN>(xmax)+<SPAN style="color: #6a8759;">","</SPAN>+String.<SPAN>valueOf</SPAN>(xmin)+<SPAN style="color: #6a8759;">","</SPAN>+String.<SPAN>valueOf</SPAN>(ymax)+<SPAN style="color: #6a8759;">","</SPAN>+String.<SPAN>valueOf</SPAN>(ymin))<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;"> </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>} <SPAN style="color: #cc7832;">catch </SPAN>(IllegalArgumentException ie) { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN><SPAN style="color: #6a8759;">"null or empty path"</SPAN>)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>} <SPAN style="color: #cc7832;">catch </SPAN>(FileNotFoundException fe) { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN><SPAN style="color: #6a8759;">"raster file doesn't exist"</SPAN>)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>} <SPAN style="color: #cc7832;">catch </SPAN>(RuntimeException re) { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN><SPAN style="color: #6a8759;">"raster file can't be opened"</SPAN>)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>}</PRE><P>rasterlayer cannot show! why?</P></BODY></HTML> Sat, 11 Dec 2021 17:22:17 GMT liuyunfeiliu 2021-12-11T17:22:17Z String rasterPath = Environment.getExternalStorageDirectory().getPath() + "/raster/SM0803.tif"; FileRasterSource rasterSource=null; try { rasterSource = new FileRasterSource(rasterPath); //rasterSource.project(mMapV https://community.esri.com/t5/developers-questions/string-rasterpath-environment/m-p/375588#M2440 <HTML><HEAD></HEAD><BODY><PRE class="lia-code-sample line-numbers language-none">String rasterPath = Environment.<SPAN>getExternalStorageDirectory</SPAN>().getPath() + <SPAN style="color: #6a8759;">"/raster/SM0803.tif"</SPAN><SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>FileRasterSource rasterSource=<SPAN style="color: #cc7832;">null; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try </SPAN>{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; rasterSource = <SPAN style="color: #cc7832;">new </SPAN>FileRasterSource(rasterPath)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="color: #808080;">//rasterSource.project(mMapView.getSpatialReference()); </SPAN><SPAN style="color: #808080;"> </SPAN><SPAN style="color: #808080;"> </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; StretchParameters stretchParams = new StretchParameters.MinMaxStretchParameters(); </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stretchParams.setGamma(2.0f); </SPAN><SPAN style="color: #808080;">// </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; StretchRenderer renderer = new StretchRenderer(); </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; renderer.setStretchParameters(stretchParams); </SPAN><SPAN style="color: #808080;">//&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; rasterLayer.setRenderer(renderer); </SPAN><SPAN style="color: #808080;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>RasterLayer rasterLayer = <SPAN style="color: #cc7832;">new </SPAN>RasterLayer(rasterSource)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>Envelope env = rasterLayer.getFullExtent()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>xmax=env.getXMax()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>xmin = env.getXMin()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>ymax = env.getYMax()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; double </SPAN>ymin = env.getYMin()<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;"> </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN><SPAN style="color: #9876aa;">mMapView</SPAN>.addLayer(rasterLayer)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN>rasterSource.getFormat())<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN>String.<SPAN>valueOf</SPAN>(xmax)+<SPAN style="color: #6a8759;">","</SPAN>+String.<SPAN>valueOf</SPAN>(xmin)+<SPAN style="color: #6a8759;">","</SPAN>+String.<SPAN>valueOf</SPAN>(ymax)+<SPAN style="color: #6a8759;">","</SPAN>+String.<SPAN>valueOf</SPAN>(ymin))<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;"> </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>} <SPAN style="color: #cc7832;">catch </SPAN>(IllegalArgumentException ie) { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN><SPAN style="color: #6a8759;">"null or empty path"</SPAN>)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>} <SPAN style="color: #cc7832;">catch </SPAN>(FileNotFoundException fe) { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN><SPAN style="color: #6a8759;">"raster file doesn't exist"</SPAN>)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>} <SPAN style="color: #cc7832;">catch </SPAN>(RuntimeException re) { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Log.<SPAN>d</SPAN>(<SPAN style="color: #9876aa;">TAG</SPAN><SPAN style="color: #cc7832;">, </SPAN><SPAN style="color: #6a8759;">"raster file can't be opened"</SPAN>)<SPAN style="color: #cc7832;">; </SPAN><SPAN style="color: #cc7832;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>}</PRE><P>rasterlayer cannot show! why?</P></BODY></HTML> Sat, 11 Dec 2021 17:22:17 GMT https://community.esri.com/t5/developers-questions/string-rasterpath-environment/m-p/375588#M2440 liuyunfeiliu 2021-12-11T17:22:17Z