StaMPS-Visualizer, SNAP-StaMPS Workflow

xwguo · November 16, 2021, 8:00am

Dear ABraun,
I want to know how to use time series in QGIS to analyze a single point of time series trend, can you provide information about the QGIS time series plugin

xwguo · November 16, 2021, 8:18am

Dear thho,
I would like to ask you some experience on how to use renv, because I searched the website for a long time and did not find a tutorial on how to use renv (including installation)

ABraun · November 16, 2021, 8:22am

Please see here:

xwguo · November 16, 2021, 9:25am

Thank you,I imported it to arcgis and then export as shp file,and then I can use the time series plugin successfully

thho · November 16, 2021, 10:04am

@xwguo Please read the README.md of the repositories you are using. Its all there:

xwguo · November 16, 2021, 12:27pm

It seems that my version of R have some problems,but I don’t know how to solve it,can you give me some advice

thho · November 16, 2021, 12:38pm

@xwguo thanks for the report, I will care about it asap. Until then, you can downgrade to 3.6.3 manually, or use a dockerized version of R v3.6.3 where you built the renv environment

https://hub.docker.com/_/r-base?tab=tags&page=1&name=3.6.3

xwguo · November 16, 2021, 12:39pm

OK,I will try it later

asepMH · November 17, 2021, 5:47pm

Hello, i am succesfully process stamps. but now i have an issue which the map background on the stamps visualizer not appear. how to solve it?

thho · November 18, 2021, 7:40am

Hi @asepMH, good work so far! There are some options that were figured out here in the thread concerning this problem. Since the thread is pretty messy I will summarize them even, when some are super obvious

You are not connected to the internet, but you need in order to use the WMS of ESRI or OSM
You zoomed to close, at some very very close zoom level, some WMS provider tiles switch to be gray
Your IP is blocked by the provider (mostly ESRI since US company), check this: switch to OSM basemap (upper left corner of the map canvas has the layer button, where you can switch the basemap). If OSM basemap works, most probably is that ESRI is blocking your IP, if I am right they do this upon your region code, that behavior was reported for a user from Iran. To solve this, you can use a VPN.

A more sophisticated some kind of solution, is to choose an other WMS, to include your a WMS different from ESRI satellite or OSM you have to change some lines in the server.R script look here:

github.com

thho/StaMPS_Visualizer/blob/master/server.R#L146

    
      
          output$stusi <- renderUI({
            lapply(1, function(x) {
              selectInput("stusi", "Select case study", stusi,
                          selected = stusi[1], width = "200px")
            })
          })
          
          

          
# Create the base map
          
          
# in order to add WMS tiles, see the comments below
            output$map <- renderLeaflet({
            leaflet(options = leafletOptions(preferCanvas = TRUE,
                                             zoomControl = FALSE)) %>%
                addTiles(group = "OSM Map") %>%
                addProviderTiles('Esri.WorldImagery',
                                 group = "ESRI World Satellite") %>%
                # uncomment the following lines in order to add WMS tiles and config them to your needs
                # here is a example of a WMS url to some well known services
                # https://stackoverflow.com/questions/9394190/leaflet-map-api-with-google-satellite-layer
                # addWMSTiles("https://url/to/WMS",

xwguo · November 18, 2021, 8:52am

Hello everyone, I want to know if the deformation rate obtained by the last stamps is the true value of the LOS direction dis_v

asepMH · November 19, 2021, 1:35pm

Thanks a lot @thho for your answer. Now this problem was solved after using Vpn. .
Btw this stamps visuaizer is very nice application, great @thho

thho · November 19, 2021, 1:50pm

@asepMH cool nice to hear that you like it!

dream81 · November 22, 2021, 9:35am

Can this software export pictures, such as ‘png’ format.

thho · November 22, 2021, 9:45am

hi @dream81 nope, not yet, if you can say which plots and views you want to export I can see if I can include it in the next update.

gnwiii · November 22, 2021, 12:40pm

If you just need a record of the plot, screenshots may be enough, but if you may need to publish a plot, packages like Matlab, Python matplotlib, R, and Microsoft Excel have put a lot of effort into publication quality plotting, so it is nice when programs have the capability to export the data used in a plot. I assume data export is a relatively simple addition to existing tools, while the ability to match the publication quality possible with existing general-purpose packages would take much more effort.

thho · November 22, 2021, 1:07pm

exactly. tbh, the export of the data to be plotted is more or less there. Since the csv table itself is the raw data and if you need e.g. the number of the measurement point, this is also given in the plot view of the ts plot in the visualizer. However, if there are specific plots or data which people want to export, I can see what I can do

dream81 · November 23, 2021, 1:48am

Well, thank you for your reply.

dream81 · November 23, 2021, 1:50am

Ok, thanks a lot.

despina98 · November 23, 2021, 12:06pm

hi @ABraun ,How do I open the PS Time series viewer plugin in QGIS? Where is it located?