Requirements for 3D Surface Mesh Charts
Posted by Andrew on 24 November 2016 05:47 PM
Even though the release of SciChart WPF v4.2 is barely a day old(!) we are already hard at work on v4.3, where we intend to add some new features for SciChart WPF 3D Charts as well as several 2D Chart features. We want to get some information from you, our userbase, as to what requirements are most important to you. We also need to ask you a few questions about how you would expect correct usage of the 3D Chart.
Features Planned for v4.3
We are planning the following features for v4.3 of SciChart WPF and we need your feedback on them. Some questions and explanation are found below.
SC3D-218 Contours on Meshes
We can add contours on surface plots quite easily. Something like this:
This is quite easy to do, but we would like to know from you if (a) it is important, (b) you need to be able to configure the contour colours dynamically (per contour, as opposed to one colour for all), (c) whether you have any special requirements for placing contours, or if you would like SciChart to choose and (d) any other comments or suggestions for the API as we build it.
Can you contact us if this feature is important to you? Your input into the requirements would be greatly appreciated.
SC3D-336 Support for Nulls in Surface Meshes
A number of users have asked for nulls (transparent cells) in surface meshes. This sounds easy on the surface, but it isn’t … Nevertheless we want to deliver it. We do have some questions though.
Given a surface mesh with 8×8 data values, we end up with something like this (below). The data-points are shown by orange dots. The cells are the squares next to the dots.
As you can see, cell colour is specified by interpolating the four points surrounding a cell. For example, the cell in the top right has a data-value of Y=1 so it should be red, but it isn’t, it’s yellow, because it has two other edges which are only at Y=0.5.
Now if a user wants to specify a cell as transparent, for example the cell at X=1, Z=6, them you end up with this:
Now this obviously isn’t ideal. We thought about how to solve this.
We could allow you to specify a separate texture for the mask to ‘null’ certain cells, however you will notice that there are 8×8 data-points in the mesh, but only 7×7 cells, so the texture size doesn’t actually match the data size. This would allow you to mask out certain cells but it would also give you a clunky API and raise questions of accuracy because of the mismatch of sizes.
Another way is we could change how we are drawing the cell textures. We could offset the texture so that each square in the texture surrounds the data-point, for example:
This would be a nice solution except it raises two problems.
We invite your comment/feedback on this proposed solution and whether it seems correct. It is very important to us that our scientific WPF Charts are both intuitive and accurate.
SC3D-337 Uneven Spacing of Surface Mesh Data-Points
Several users have requested that we allow uneven spacing of surface mesh data-points. However, we have a question. Which sort of spacing are you expecting, (A) or (B)?
SC3D-338 Waterfall Charts 3D
In SciChart WPF v4.3 we intend to add Waterfall Charts 3D. For clarification, we intend to create a hardware-accelerated version of our WPF Waterfall Chart Example using SciChart3D:
If we do this, we will likely bind it to our UniformGridDataSeries3D type. This means the data-source will be a 2-dimensional Double array of Y-values only. But what sort of requirements do you need for this chart type? Do you need for example:
We’re assuming you need realtime performance & being able to scroll in the Z-direction (time) …
SC3D-326 Virtualization of Large Surfaces
The current limit for the size of the 3D Surface Mesh chart is limited by the maximum texture size on your GPU, which in most cases is 4096*4096 and on some GPUs is larger, up to 16k * 16k.
Some customers have contacted us and asked for larger surface sizes, but we would just like to know how many so that we can prioritise this complex piece of work.
Those are all the questions we have about SciChart 3D Surface Mesh for now. If you are a current customer of SciChart WPF 3D, or you are considering to purchase this software, please get in contact with your feedback. It is extremely valuable that we build software that you actually want to use and meets your requirements!
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SciChart WPF v4.2 Build 9172 Released!
Posted by Andrew on 23 November 2016 09:00 AM
So those of you who have been watching our releases page will notice that SciChart iOS & Android v1.2 were released several weeks ago, but SciChart WPF is no-where to be seen!
Well, the good news is that while we have been delayed in our SciChart WPF v4.2 release, we are now ready to publish it! The delay was due to an extra round of testing & bug fixing (over and above the norm for SciChart releases) in order to make this one of the most stable and perfected releases of SciChart ever.
If you have a moment you can take a look at our Task Tracker board showing the status of the SciChart v4.2 Sprint. Our Issue Tracker was made public (read-only) a few weeks ago and you can now browse the status of sprints, tasks and bugs that you have reported.
Have a look below to see what’s coming soon.
XPS, Png Issues Fixed
In SciChart v4.2 we have literally fixed over 20 bugs related to Xps and Png export. The level of bugs in this feature was quite frankly, embarrassing, and we apologize to our users for putting them through this! In our defense, the image/XPS export feature is hugely complex, and requires us to make a perfect clone of the SciChartSurface in memory, and off-screen, for rendering to Png or XPS (Vector format) at a size other than the current chart.
This is now done and the export works beautifully. We have also explored various ways of UIAutomation testing and come up with a Visual Test Framework that compares expected vs. actual Bitmap / XPS outputs in a variety of edge cases, plus, created over 150 test cases to cover this extremely popular feature.
Improvements to SciChart3D
Some feature requests for SciChart3D have been added to SciChart WPF v4.2. These include the ability to switch from Right to Left Handed Coordinate systems, fixing issues with 3D Pointmarker Transparency and creating an example to demonstrate adding custom Cube Geometry and Text to the scene.
We have also added handling of order-independent transparency for some entities in the scene as well as the ability to create custom PointMarkers for 3D Charts.
Pie Chart and Donut Chart!
We don’t know why this chart type is so popular, but you wanted it, so we built it! We hope you like it!
Negative Logarithmic Axis
It is possible to show data points with negative values on a logarithmic scale. Use our new NegativeLogarithmicAxis for that!
Some Minor Improvements
We’ve added a SciChartSurface.ZoomState property to allow you to know if the user is zooming or not. This is used in our Tutorials to allow real-time zooming and panning alongside realtime scrolling charts.
Oh and we’ve created 9 new tutorials to help new users get started with SciChart WPF.
We’ve added a DataSeries.Tag property.
We’ve added an overload to ExportToBitmapSource(Size) so you can specify a size before exporting.
We’ve also added SeriesValueModifier.IncludeSeries and SeriesSelectionModifier.IncludeSeries properties so you can hide a series from these modifiers.
We’ve made the DataPointSelectionModifier work with more series types such as Stacked series, Band Series and Bubble Charts.
We’ve added methods to ViewportManager to allow you to ZoomExtents in a delayed fashion after updating data via Databindings.
We’ve made the RolloverModifier MouseOver Hover mode work properly with Realtime-charts.
We’ve added the properties Viewport3D.ForceStallUntilGPUIdle and Direct3D10RenderSurface.EnableForceWaitForGPU which can be used to stall DirectX rendering until GPU is idle (resolves flicker on some older hardware).
Finally, SciChartLegend.Background is bound to LegendModifier.Background by default now.
A Bazillion Bug Fixes
There are also many many bug fixes in this release, and also a lot of UIAutomation tests and unit tests have been added to reduce the chance of them creeping back in in the future. The list of bug fixes in SciChart v4.2 can be found below.
Fixes for SciChart 2D
Fixes for SciChart Export to File / XPS
Fixes for SciChart 3D:
Improvements to the Examples Application
Where to get it?!
You can get all the SciChart Releases from the www.scichart.com/downloads page. If you haven’t created an account with SciChart.com yet, please do. You will need to in order to access the downloads.
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SciChart WPF: New set of tutorials now online
Posted by Andrew on 10 November 2016 03:42 PM
If you are new to SciChart WPF, or have recently started using it, it’s well worth taking a look at our new set of tutorials for SciChart WPF!
These include the following topics:
By the end of the tutorials you should end up with a multi-chart, multi-axis chart, with realtime updates and annotations, scrollbars, zooming and panning behaviour, tooltips and legends, which looks a little like this:
If you are experienced with SciChart WPF, it’s worth having a look to give us your feedback.
Also, if you have any feedback for us about topics to include for future tutorials that would also be greatly appreciated.
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Transitionz WPF – Free library for Metro style Animation Effects
Posted by Andrew on 25 October 2016 01:27 PM
We spent a little bit of time at the weekend open-sourcing one of the libraries that we use in the SciChart WPF Examples Suite and Licensing Wizard which handles cool animation effects!
This cool little library allows you to animate Opacity, Translate Transform, or Blur.
You can do really complex things and trigger animations on loaded, on Visibility Changed or on Property Changed via bindings. We use it in the SciChart WPF Examples Suite as well as the Licensing Wizard to achieve these cool effects.
If you want to include Transitionz in your app and have cool animation effects, you can get it for free from NuGet as the SciChart.Wpf.UI.Transitionz package (licensed under Apache 2.0 – free for commercial use). Alternatively, we have also published the full source to Github.
For usage instructions please see the Transitionz-Library wiki page.
The post Transitionz WPF – Free library for Metro style Animation Effects appeared first on WPF Charts, iOS and Android Charts | SciChart.
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Survey: .NET Framework 4.0, 4.5, 4.6 Support Versions
Posted by Andrew on 14 September 2016 07:09 AM
On the Microsoft site, they have announced earlier this year in fact that support has ended for the .NET Framework 4.0, 4.5 and 4.5.1 whilst continuing to develop .NET Framework 4.5.2 and 4.6.
Microsoft says their decision to end support for older versions of the .NET Framework will allow them to invest more resources towards improvements of the .NET Framework.
SciChart v4 currently supports .NET Framework v4.0, 4.5 and 4.6. We plan to keep supporting as wide a range of .NET Frameworks as long as possible.
Ideally however, we need to drop support for .NET 4.0. This is because some dependencies we use (such as SharpDX, used by SciChart.DirectX package) now only support .NET 4.5 and up. However, we would like to know from you if this will affect you negatively in order to decide when to do this.
Please take a moment to answer our survey below if you are using .NET 4.0 only for deployment, or plan to use .NET 4.5.2, .NET 4.6 for current or future projects.
Survey: .NET Framework Support Versions
Question: Are you currently supporting .NET 4.0 in your current & future applications? Are you planning to upgrade to .NET 4.5.2 or .NET 4.6?
Please take a moment to answer our survey below.
The post Survey: .NET Framework 4.0, 4.5, 4.6 Support Versions appeared first on WPF Charts, iOS and Android Charts | SciChart.
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SciChart WPF v4.1.1 Build 8645 Released
Posted by Yuriy on 19 August 2016 12:02 AM
We are pleased to announce a Minor Update to the SciChart WPF SDK v4.1.
This release adds new features requested plus fixes some critical bugs which have been reported by our users over the past few weeks.
If you are using SciChart v4.x then this update is backwards compatible and is a drop-in replacement. If you are still using SciChart v3.6.1 we invite you to take a look at SciChart v4 and our migration guide. We’ve made it easier than ever to jump to the latest major version!
What’s New in v18.104.22.16845?
New Features (3D Charts)
Fixed (2D Charts)
Fixed (3D Charts)
Where to get SciChart Downloads?
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