Does anybody know how to add a single marked position to each bar of a bar chart? I'm new in Oracle APEX and after long research I didn't find a solution. Also the example plots didn't helped with my need. I know I can combine a bar- and a line-chart but I don't want to have a line, just single positions to be marked. The exact representation of the values is not important (points, circles, dashes, stars, ...) but they shouldn't be combined. It could look like this:
Is there an option in Oracle Apex without changing the source code (I don't have this option)?
Thanks in advance!
It is possible to set the type of a line chart to none and activate markers so no lines between the dots were displayed.
Related
I am currently trying to draw an oscillation using Octave. This is what I want to achieve in the end:
In this diagram, the y axis arrow is drawn in the middle of the graph instead of at the top or bottom.
I think this way it makes a lot of sense because the arrow kind of mirrors the graph itself periodically.
Now, what I have so far:
x = [0:.1:10];
plot(x, sin(x);
box off
Which looks like this:
But I can't get the y axis arrow to be in the middle. So far I've read
The axis documentation
The page about two-dimensional plots
But I can't find anything about positioning the axis. Thanks for any help in advance.
Using your example:
x = [0:.1:10];
plot(x, sin(x));
box off
set( gca, 'xaxislocation', 'origin' )
Some more, possibly helpful tips:
In general, if you don't know what parameters are available in a graphical object handle, and you want to "check", you can use get with an empty string, e.g. get( gca, '' ) to check all the parameters that you can 'get' or 'set' on the current axes object.
Similarly, if you want to check what values a particular parameter can be set to, you can do, e.g. set( gca, 'xaxislocation' ), i.e. without providing the value to set it to. If that particular parameter only accepts values from a specific set of values (instead of e.g. a numerical array), then Octave will then show you what these options are (and also which is the default).
Obviously, if you know what you're looking for, you can also just go straight to the relevant page in the octave manual and search the page for it :)
Since the online manual is quite large, and has no 'search' facility of its own (it does within octave, but the online version doesn't), in order to jump straight to the relevant section I often find it useful to do a duckduckgo (or google) site-specific search, e.g. "xaxislocation site:https://octave.org/doc/v6.2.0/"
I'm writing a 'template creation' app using the dcc.Graph image annotation features in Plotly Dash.
The user adds multiple rectangles for specific features in the image (an invoice) and my callback captures the coordinates of each rectangle via the relayoutData variable. I want to use a different color for each rectangle, but can't figure out how to do it.
It seems like the only way to change the newshapes fillcolor
property is to replace the whole figure, but then I lose all previous shapes
All and any help appreciated.
Andrew
I have just found the following demo that does exactly what I am trying to do:
https://dash-gallery.plotly.host/dash-image-annotation/
Now to unpack the logic and adapt it to my context ... Happy 2021!
Andrew
Situation: Trying to output and also manipulate an indexed image.
Problem: When using ind2rgb(image, colormap(x)), we received an error saying that the indexed image contains colors outside of colormap, where x is the colormap option.
Question: How to work around this?
Additional information: I used imshow(image, colormap(x)), where I used every colormap available on Octave in substitution of x.
I believe this happens because you have more indexes than colors in colormap. Just make a bigger colormap. You can do that with the sysntax colormap(x(size_of_cmap))
ind2rgb(image, colormap(viridis(max(image(:))))
Alternatively, create the colormap and interpolate it. Caution: this can create artifacts in the color due to HSVs circular behavior.
m=max(image(:));
cm=colormap(x);
hsv=rgb2hsv(cm);
cm=interp1(linspace(0,1,size(cm,1)),hsv,linspace(0,1,m));
cm=hsv2rgb(cm);
ind2rgb(image,cm);
I suggest using the first solution if possible.
How to create a line/path between two objects. Start and end point of path/line should not begin/end at the center of the respective object. Below i'm attaching the screenshot of sample. I need to calculate the logic to find the red line at any position. Black line is wrong one.
And it is purely based on SVG not html elements.
Thanks in advance
I found the solution without using any library based on the given below URL's.
URL 1: How to find the intersection point between a line and rectangel
URL 2: Calculating the intersection of two lines
As a beginning self-made amateur programmer I’m currently trying to get some things done with Google Fusion Tables.
I made a map with markers and got the HTML of that map. But I wish to add the function of a tooltip by a mouseover of a particular marker. I found a tutorial to work this out but I can’t enable the tooltips.
The following link shows the progress so far: http://jsbin.com/cipejicewo/1/watch?html,js,output
1 I don’t have to change something in this script that fits to the specific Fusion Table where its linked with, do I? When I do have to change the javascript, what are the specific elements I have to rename?
2 How can i call google.maps.FusionTablesLayer.enableMapTips(options)? And where do I have to put this whole ‘function init’ code in the html-file? Directly in the script that described above? Off course without losing the functions that the html already provides. Besides that, I get that I have to change the tableid and change the select column and geometry column name, but is there something more I should change in this function I'm going to add?
I'm struggeling with it now for days. And I'm out of options, so every help would be welcome. Thanks in advance!
It's not clear what your code currently looks like, but these 2 things you'll need to do first:
when you use another FusionTable than the example, make sure that the table is public and downloadable
You must use your own key(it's the variable apiConsoleKey in the example). Follow the steps in Acquiring and using an API key to get a valid key.