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Invalid argument - unknown wkt,this is the exception which i got

竹丰刘

I use the shapefileTable to open the shapefiles on my machine,write with the absolute path.I download the local shapefiles(include .dbf .prj .shp .shx) from google.and all the code are from https://developers.arcgis.com/java/10-2/sample-code/shapefile-feature-layer/ .I only change the shapefileTable line of code.

try {
shapefileTable = new ShapefileFeatureTable("E:\\antarctica-icesheet-polygons-3857\\icesheet_polygons.shp");
featureLayer = new FeatureLayer(shapefileTable);

// create a renderer
UniqueValueRenderer uvRenderer = new UniqueValueRenderer(
new SimpleFillSymbol(new Color(100, 0, 0, 255), null), "icesheet_polygons");

// set renderer
featureLayer.setRenderer(uvRenderer);
jMap.getLayers().add(featureLayer);

the shapefiels(include .dbf .prj ..sbn .sbx shp .shp.xml .shx) that the sample code use are more.Is that the problem?

I HOPE THERE IS SOMEBODY TO HELP ME OUT! THANK YOU!

antarctica-icesheet-polygons-3857.zip

Surveys I can submit.jpg

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竹丰刘

this problem is kill me out,,,,I am a chinese guy（and a student）,but I can barely found any solution about this,even sample.from chinese website 0.0

nita14

Hi,

First of all, the attached shapefile does not have correctly spatial reference specified (wrong .prj file). As the shapefile's name states, it is WKID 3857 - that is Web Mercator Auxilliary Sphere. You need to Define Projection (as WKID 3857) and Project data to Basemap spatial reference which is WGS-1984 (WKID 4326) using ArcGIS Desktop or any other GIS tool. Check out this blog: When to use the Define Projection tool and the Project tool? | Support Services Blog for further guidance

Next, you have two options:

1) Use ShapefileFeatureTable, then both Basemap and Shapefile spatial refences need to be the same. If not, shapefile is not displayer or misaligned.

2) Use LocalService's Dynamic Workspace (not recommended)

LocalServer can project the data on-the-fly. Check out ArcGIS Runtime Sample App for 10.2.4 - Dynamic workspaces: shapefile for assistance.

Hope this helps,

Adam

竹丰刘

sorry for so late to answer you,and really thank you for the answer.I have been use your method that i change the basemap url become a WKID 3857 one.and the same exception is reported .the following line is the same exception:

java.lang.RuntimeException: Invalid argument - unknown wkt
at com.esri.core.geodatabase.Geodatabase.nativeOpenShapefile(Native Method)
at com.esri.core.geodatabase.Geodatabase.a(Unknown Source)
at com.esri.core.geodatabase.ShapefileFeatureTable.<init>(Unknown Source)
at ShapefileApp.createMap(ShapefileApp.java:66)
at ShapefileApp.createUI(ShapefileApp.java:126)
at ShapefileApp$1.run(ShapefileApp.java:104)

it's first six line of exception.

perhaps there is some problem with the shapefiles that I dowoload.and i have been required to use the California street map in the java project in the end.

nita14

HI,

Have you used Define Projection tool to re-create valid .prj file? If not, you have to do so. Apparently, there is still issue with your shapefile. Also, you should add the same shapefile to ArcMap and see if the warning about unknown spatial reference pops up.

Regards,

Adam

EMani_6-1781012655014.png

竹丰刘

hello ,Adam.thank you for your answer,how nice of you.these days I have try to solve my problem,but it's still some problem in my project.

First,the project can be runing ,and the window can show out,but there is nothing be drawed in the window which is all blank.

I FEEL better because it's not be throw out the exception i encounter before.

Second,the shapefiles i downdoad can be draw in the Arcmap(desktop vision 10.1),there is a lot of line which represents the road in the Arcmap.I USE the analysisMap function,then it tells me that the map don't have the Spatial Reference or index（in chinese both are same meaning,my Arcmap are chinese vision）,which it's a serious warning，and I double-click it ,and then the map was added the Spatial Reference.And the file was added more three new files which is sbn. sbx. and shp.xml.but the window are still all blank.

the render code are followed： UniqueValueRenderer uvRenderer = new UniqueValueRenderer(
new SimpleLineSymbol(Color.RED, 1), "name");

featureLayer.setRenderer(uvRenderer);
jMap.getLayers().add(featureLayer);

any error in my code?

I KNOW the UniqueValueRenderer class' second parameter is column Header from the dbf.file which you can open it to see it .the sample code is also use the column Header to be the second parameter,and the sample can be drawed.BUT in my projet use it the same way,but it just can't be drawed,

Third,you tell me to re-creat the prj,file by Arcmap.I wish i can handle it ,but the function to define the projection have some problems.

when I choose my shapefile,it tell that my date set is not exist or not supported.

I AM JUST CONFUSED.IF you know something that can help,please let me know.

竹丰刘

hello，Adam.

I HAVE one more problem to ask you again,

when i use point(which longitude and latitude are west-longitude 122 and north-latitude 37)in State of California

the code is following:

private JMap createMap() {
// map
JMap jMap =new JMap();
//MapOptions mapOptions = new MapOptions(MapType.TOPO);
//jMap = new JMap(mapOptions);
ArcGISTiledMapServiceLayer basemap = new ArcGISTiledMapServiceLayer(BASEMAP_URL);

jMap.getLayers().add(basemap);

GraphicsLayer myGraphicsLayer = new GraphicsLayer();

SimpleMarkerSymbol simpleMarker = new SimpleMarkerSymbol(Color.RED, 10, Style.CIRCLE);

SpatialReference spatialReference = SpatialReference.create(4326);

Point point = GeometryEngine.project(37.6, -122.5, spatialReference);
Point point1 = new Point(37.6, -122.5);
myGraphicsLayer.addGraphic(new Graphic(point1, simpleMarker));

jMap.getLayers().add(myGraphicsLayer);
jMap.setShowingEsriLogo(false);
jMap.setExtent(new Envelope(-15967900, 1670500, -6360000, 8079000));

return jMap;
}

THE red point is supposed to show in State of California,but it is showing nearly by the Africa，it's obviouly wrong.

i thought it maybe is because of the SpatialReference is wrong,but what number instead of 4326 I suppose to use?

or there is some method to mark the longitude is west-longitude and the latitude is north-latitude?

AND the code: jMap.setExtent(new Envelope(-15967900, 1670500, -6360000, 8079000));

the function of this line of code is to set the map-view to Include all the amerian-map.

AND I really want to know those number(-15967900, 1670500, -6360000, 8079000) how to create.

if those numbers is transformed by Latitude and longitude，please tell how turn Latitude and longitude to those number.

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