shapefile

问题 Question I have a set of shapefiles for different Bus Routes (Each route has 2 Trips) for Cairo. I wanted to check if they pass by certain stations using R: Stops_Data <- readOGR("Stackoverflow Data/","Stops_Data") Trips_Data <- readOGR("Stackoverflow Data/","Trips_Data") plot(Trips_Data) points(Stops_Data, col = "red") I try to match them using over(). First, I make sure the Projections are identical. proj4string(Trips_Data) <- proj4string(Stops_Data) over(Stops_Data, Trips_Data) This only

问题 Eg: [360590, 555610] - [lng, lat] in meters from google map api - GeoJson data { "type": "FeatureCollection", "features": [ { "type": "Feature", "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 360590, 555610 ], [ 360590, 555555.0128 ], [ 360590, 555540 ], [ 360592.4439, 555540 ], [ 360600, 555540 ], [ 360600, 555518.8277 ] ] ] ] } } ] } here, [360590, 555610] - [X, Y] coordinates is in meters, Now we need to display this coordinates on google map, Is there any solution for this?

问题 I'm trying to read an .shp that I created from geojson.io to do some tests, it gave me an .zip which contains the files below. When I try to read the .shp alone I'm having the error: "System.IO.FileNotFoundException: '.../POLYGON.dbf'". When I try to read the .shp with the .dbf in the same folder I'm having the error: "System.NotSupportedException: 'Unsupported DBF reader Type 13'". I tried to open this .shp in QGIS and it worked. I tried to read other .shp files from other sources with my

问题 Could not delete question. Please refer to question: Shade states of a country according to dictionary values with Basemap I want to plot data (number of sick people for a certain year) on each state of Mexico. I am using jupyter notebook. So far I have seen several options and tutorials, but none seem to seem to explicitly explain how to plot the map of a country. Below I explain some options/tutorial I have seen and why they have not worked (this I do just to argue that tutorials are not

问题 Could not delete question. Please refer to question: Shade states of a country according to dictionary values with Basemap I want to plot data (number of sick people for a certain year) on each state of Mexico. I am using jupyter notebook. So far I have seen several options and tutorials, but none seem to seem to explicitly explain how to plot the map of a country. Below I explain some options/tutorial I have seen and why they have not worked (this I do just to argue that tutorials are not

问题 I have some questions about maps/shapefiles. I'm not a expert in R, so, to make it easier do understand what I'm going for, I'll enumerate: 1- Identify each grid on the map, and maybe omit some of these grids. 2- Color each grid by values from a data frame I just made what i'm trying to make using Photoshop to help to illustrate my goal here I made this map using the 'intersect' function with a shapefile I got from internet and a grid i made using 'rastertoPolygons' function, but I'm not sure

问题 I have to develop one project in php and in that I have to include shape file and that shape file needs to be converted in to kml file. I know how to convert shape file into kml file but I don't know how to take/import shape file into php project. and I also have the supporting files with the shape file which contain more information.some of them are .dbf, .shx etc. And this all file's information should also be stored with the shape file information. Is there any tool to import shape file or

问题 I have analysed a dataset of GPS points using density.ppp to generate a sort of heatmap of intensity of the points, as shown below: However, I would like the image to be limited to the borders of the shapefile, similar to below: The first image is called as x <- readShapePoly("dk.shp") xlim<-c(min(912),max(920)) ylim<-c(min(8023),max(8030)) a<-ppp(cases@coords[,1], cases@coords[,2], xlim, ylim, unitname=c("km")) plot(density.ppp(a, 0.1), col=COLORS) plot(x, add=T, border="white") where cases

问题 I am currently working on sharpmap project with the need to work on offline maps. As i am fresher in this field,I am following the sharpmap tutorial and facing a problem with loading new shape files in the given tutorial code. For Example :\ SharpMap.Layers.VectorLayer("States"); vlay.DataSource = new SharpMap.Data.Providers.ShapeFile("path_to_data\\states_ugl.shp", true); At this line of code, if i pass a different shapefile, code builds with a blank background or no display. I have tried

问题 I am trying to view a basic polygon read from a Shapefile using matplotlib and pyshp But all my efforts yield just an empty axes with no polygon. Here are few of my tries, using the dataset showing the borders of Belgium: import shapefile as sf r = sf.Reader("BEL_adm/BEL_adm0") p=r.shapes() b=p[0] points = b.points import matplotlib.pyplot as plt from matplotlib.path import Path imporst matplotlib.patches as patches verts = points verts = [] for x,y in points: verts.append(tuple([x,y])) codes