Using core plot pie chart i am able to produce this. However i want to fill the inside rect with some color is it possible?. i have used same source http://stackoverflow.com/questions/17697300/coreplot-ios-remove-border-line-around-pie-chart..
kindly suggest the other possibilities also.
Make a second pie chart with a radius equal to the inner radius of the ring. Give it a single slice filled with the desired background color.
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I tried to customise leaflet heatmap.js to render rectangles to generate a heatmap. I was doing good so far. But, there are spacing in between rectangles that I can't get rid of. As in the picture.
heatmap
Solutions that I tried: turn off antialiasing, add offset. While adding offset remove the space, it creates an area with "blended color" which I don't want to have. I wonder if there is a solution to remove the gap or remove the blending color in heatmap.js.
Thanks and regards.
Turn out it is precision problem of the leaflet latlong to screen coordinate function. I have fixed it by recalculate the coordinate.
Is it possible to draw a line similar to the example below and color it based on the previous value?
So to have the color red when the line is moving down and green when it goes up.
Can this be done with line type? Or does it need to be drawn with markLine or something else?
Any help is much appreciated!
https://echarts.apache.org/examples/en/editor.html?c=dynamic-data2
I don't think it is possible with the line chart, as the whole line uses the same color for all points. I suggest you use a scatter type chart where each point can have a different color. By setting symbol size to a small value and drawing values close together you can emulate visual line.
Here is an example based on the regression sample from echarts site:
You can see the image, I want to draw a custom spider chart like this with different section. This is a dynamic spider chart with dynamic sections, I want to colour different sections based on my api data, How can I achieve this?
You can use UIBezierPath for that. I think the circles are clear. For the differently colored segments, you can use the function bezierPathWithArcCenter:radius:startAngle:endAngle:clockwise: (https://developer.apple.com/documentation/uikit/uibezierpath/1624358-bezierpathwitharccenter) and fill it with the desired color.
I have 4 coordinates assigned to variables, so I would just like to colour in the rectangle that is created from these variables. I tried the fill function, but I cant gather much information from the example.
When I try to use:
fill(bottom left point, top right point,'g')
the figure it makes only shows a line between those points, and doesn't colour in the entire area.
I'm using MATLAB R2019b, if that helps.
Also, if its possible to fill the rectangle with a pattern instead, please let me know aswell.
Thanks in advance
How to draw Pie chart like below by using coreplot???
You'll need to use two pie charts to draw this—one for the inner ring and another one for the outer ring. Look at the Donut Chart plot in the Plot Gallery example app.
The pieRadius sets the radius of the outside of the ring and the pieInnerRadius property sets the inner radius. Use a negative labelOffset to put the labels inside the plot. Insert a newline ('\n') character between the word and the number to make the two-line labels for the inner plot. Set the textAlignment of the label text style to CPTTextAlignmentCenter to center align the multi-line labels.
You can use the default color scheme for the pie slices, but it only has 10 colors. If you want more or different slice colors, implement the -sliceFillForPieChart:recordIndex: datasource method and return the desired fill (which can be a color, gradient, or image) for each slice.
http://www.jaysonjc.com/programming/pie-chart-drawing-in-iphone-using-core-plot-library.html
I hope It Will Help ful to you