I'm trying to build the doc for a Python package on readthedoc.org using sphinx on rst files. The doc is built as expected except for images that I'm unable to properly reference. What would be the proper way to reference the image produced by mycommand ? My solution doesn't work...
.. command-output:: mycommand > example_01.png
:shell:
.. image:: ./example_01.png
:target: ./example_01.png
:width: 75%
Related
My goal is to create a presentation with Jupyter notebook without code input.
I have tried the following code
!jupyter nbconvert Explanatory_Analysis.ipynb --to slides --post serve --no-input --no-prompt
This code is prompting the NotImplementedError
Here's a somewhat hacky solution.
Paste the following code into a new code cell, then execute the cell.
Be sure to change the NOTEBOOK variable to the filename of the current notebook and SAVE the notebook BEFORE running.
The hackiest thing about it is that the code overwrites the current notebook, so you'll need to refresh the juptyer page in your browser after running the script.
import nbformat as nbf
import os
NOTEBOOK = "Explanatory_Analysis.ipynb"
PATH = f'{os.path.abspath("")}/{NOTEBOOK}'
ntbk = nbf.read(PATH, nbf.NO_CONVERT)
for i, cell in enumerate(ntbk.cells):
if cell.cell_type == "code":
metadata = cell["metadata"]
slideshow = metadata.get("slideshow", {})
print(f"[cell#index={i}] {cell.cell_type=}")
print(f"BEFORE {metadata=}, {slideshow=}")
slideshow["slide_type"] = "skip"
metadata["slideshow"] = slideshow
print(f"AFTER {metadata=}, {slideshow=}")
nbf.write(ntbk, PATH)
I've donwloaded an image from user manual (see attachment) and need to transform it. When I tried to load it via following code, I got the exception: "Image cannot be loaded. Available decoders:\r\n - JPEG : JpegDecoder\r\n - PNG : PngDecoder\r\n - GIF : GifDecoder\r\n - BMP : BmpDecoder\r\n".
Is it possible to apply custom decoder and where can I found them?
using (var originalImage = new MemoryStream(...))
using (var image = Image.Load<Rgba32>(originalImage))
{
}
The linked image can be decoded using ImageSharp. As #tocsoft says in the comments it likely you forgot to reset your input stream position.
Here's the two images. The second we've loaded and flipped vertically using the following code:
using (var image = Image.Load(Path.Combine(inPath, "-7bH2hfA.png")))
{
image.Mutate(x => x.Flip(FlipMode.Vertical));
image.Save(Path.Combine(outPath, "-7bH2hfA-flipped.png"));
}
Your input image:
Our flipped output image:
EDIT
When I originally tested the image I used r-click save which gave me a valid png. I have since used the direct download from Dropbox which yields the original file.
It's not a png! It is, in fact, a webp file.
My goal is to download an image from an URL and then display it in R.
I got an URL and figured out how to download it. But the downloaded file can't be previewed because it is 'damaged, corrupted, or is too big'.
y = "http://upload.wikimedia.org/wikipedia/commons/5/5d/AaronEckhart10TIFF.jpg"
download.file(y, 'y.jpg')
I also tried
image('y.jpg')
in R, but the error message shows like:
Error in image.default("y.jpg") : argument must be matrix-like
Any suggestions?
If I try your code it looks like the image is downloaded. However, when opened with windows image viewer it also says it is corrupt.
The reason for this is that you don't have specified the mode in the download.file statement.
Try this:
download.file(y,'y.jpg', mode = 'wb')
For more info about the mode is see ?download.file
This way at least the file that you downloaded is working.
To view the image in R, have a look at
jj <- readJPEG("y.jpg",native=TRUE)
plot(0:1,0:1,type="n",ann=FALSE,axes=FALSE)
rasterImage(jj,0,0,1,1)
or how to read.jpeg in R 2.15
or Displaying images in R in version 3.1.0
this could work too
here
library("jpeg")
library("png")
x <- "http://upload.wikimedia.org/wikipedia/commons/5/5d/AaronEckhart10TIFF.jpg"
image_name<- readJPEG(getURLContent(x)) # for jpg
image_name<- readPNG(getURLContent(x)) # for png
After downloading the image, you can use base R to open the file using your default image viewer program like this:
file.show(yourfilename)
I follow this document and this question.
I have downloaded ne_10m_admin_1_states_provinces files but I can not find
country_code_index (for Iran Or other country) in it.
I use this command in ubuntu command line :
ogrinfo ne_10m_admin_1_states_provinces.dbf -al > Out.txt
out.txt's content is :
How to find --country_code_index AND --country_name_index ?
Go through Map-converter-notes which has very good information about all the steps required to generate a new map from public data.
Linux users can install a very handy tool SAGA-GIS to generate required shape file and then use converter.py to generate map to use with jvectormap.com plugin.
country_code_index is the index of attribute which will be used as code name for specific region on map and country_name_index is the attribute which will be shown as label of region on map. Attributes chosen for these should have unique values in map data table.
These are the steps I am trying to achieve:
Upload a PDF document on the server.
Convert the PDF document to a set of images using GhostScript (every page is converted to an image).
Send the collection of images back to the client.
So far, I am interested in #2.
First, I downloaded both gswin32c.exe and gsdll32.dll and managed to manually convert a PDF to a collection of images(I opened cmd and run the command bellow):
gswin32c.exe -dSAFER -dBATCH -dNOPAUSE -sDEVICE=jpeg -r150 -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -dMaxStripSize=8192 -sOutputFile=image_%d.jpg somepdf.pdf
Then I thought, I'll put gswin32c.exe and gsdll32.dll into ClientBin of my web project, and run the .exe via a Process.
System.Diagnostics.Process process1 = new System.Diagnostics.Process();
process1.StartInfo.WorkingDirectory = Request.MapPath("~/");
process1.StartInfo.FileName = Request.MapPath("ClientBin/gswin32c.exe");
process1.StartInfo.Arguments = "-dSAFER -dBATCH -dNOPAUSE -sDEVICE=jpeg -r150 -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -dMaxStripSize=8192 -sOutputFile=image_%d.jpg somepdf.pdf"
process1.Start();
Unfortunately, nothing was output in ClientBin. Anyone got an idea why? Any recommendation will be highly appreciated.
I've tried your code and it seem to be working fine. I would recommend checking following things:
verify if your somepdf.pdf is in the working folder of the gs process or specify the full path to the file in the command line. It would also be useful to see ghostscript's output by doing something like this:
....
process1.StartInfo.RedirectStandardOutput = true;
process1.StartInfo.UseShellExecute = false;
process1.Start();
// read output
string output = process1.StandardOutput.ReadToEnd();
...
process1.WaitForExit();
...
if gs can't find your file you would get an "Error: /undefinedfilename in (somepdf.pdf)" in the output stream.
another suggestion is that you proceed with your script without waiting for the gs process to finish and generate resulting image_N.jpg files. I guess adding process1.WaitForExit should solve the issue.