Yes understood the requirement.
We are expert coders in D3.js (JS chart Library) and will use the same for your needs.
Following example pages developed for other clients will help you to know more about our skill expertise.
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(A library defined using d3.js to display hierarchical chart which has
1. Set colors for nodes and lines
2. Set the bunch size (2,3,4)
3. Check the overlapping nodes
4. Hide or show the nodes
6. Roll up function
7. Handles multiple set of JSON formats)
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(A responsive data viz showing the car sale details as sunburst and as well as stacked bar graph)
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(A force enabled WBS with zoom and pan facility)
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(A horizontal WBS and the interface is written by us as an add on for D3.js)
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(A sankey chart)
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(A visualization chart using d3.js)
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(A d3.js with maps)
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(Heat map using d3.js)
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(A chord showing the software link using chord layout)
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(A 3D pie chart developed using [login to view URL])
Please let us know and ready to start