When I move the mouse over the surface plot of the ilnumerics, the color of the plot turns to pink. This seems to be the default behaviour. How can this be turned off?
Try:
surface.Markable = false
The Markable property is a property of every node. Here, 'surface' is expected to reference the group node which is created by
var surface = new ILNumerics.Drawing.Plotting.ILSurface(...)
Alternatively, the hover marking can be switched on / off individually for the wireframe lines and the surface fill:
surface.Fill.Markable = false;
surface.Wireframe.Markable = false;
Related
I have written some code that snaps a cylinder to an existing cylinder using a for loop on a gameobject list I call cylinders. Below is the code I use for "snapping" the cylinder to another cylinder using the mouse position and a "translucentPrefab". I would like to know if there is another object obstructing the placement. For performance reasons I would like to avoid using another for loop through my list to check each position. Is there any good solution for this. Could I use a "fake" 2d array since I mostly use full integer boxes and set squares to occupied in that array. Or is there a smarter approach?
`if (worldMousePosition.x > centerPoint.x && Vector3.Distance(worldMousePosition, centerPoint) < snappingRange)
{
translucentPrefab.transform.position = rightPosition;
snapped = true;
left = false;
if (renderer != null)
{
// Set the prefab material to translucent and green
material.color = new Color(0, 1, 1, 0.5f);
}
}`
I have tried using box colliders in many ways to check in the same space as the new cylinder, however all attempts have been a faliure.
I suggest you to use Physics.SphereCastAll at point where you cursor is and just iterate over all object that SphereCastAll returns.
And if you don't want objects to count toward physics you can add special physic layer for just this. And that adjust collision matrix.
I am building plotly figures with R. The figures have legends. Each legend has a colored point that represents a level of the data. Here is a minimal example:
library(plotly)
data(iris)
plot_ly(
x = ~Petal.Length, y = ~Petal.Width,
color = ~Species,
data = iris)
By default, double-clicking on a point in the legend completely hides all unrelated points. For example, double-clicking on the "versicolor" point in the legend hides all "setosa" and "virginica" points in the plot. In plotly argot, it "filters" the data in the plot.
But I would rather that clicking on a point in the legend highlight points in the plot. For example, I would like clicking (or double-clicking) on the versicolor point in the legend to dim the "setosa" and "virginica" points in the plot, perhaps by reducing their opacity. The versicolor points in the plot would then be "highlighted." Can this behavior be implemented?
I've read through the plotly documentation and searched SO and the plotly forums for related questions. That search suggests two potential solutions, but they seem rather complicated:
Write a custom "click event" function in JS. https://plotly.com/javascript/plotlyjs-events/#legend-click-events seems to suggest that this approach can work. I don't know whether I can implement this approach from R.
Disable the default legend (showlegend = FALSE), then create a new legend by adding traces that have customized click events.
Are these the best approaches? If they are, and if more than one is workable, which one should I pursue?
Other notes: I'm not using Shiny. And I know about the itemclick and itemdoubleclick legend attributes, and about highlight_key(), but they don't seem relevant. (Please correct me if I'm wrong.)
The key is to disable legend-click events in R, and then to write a custom event handler that changes the figure when plotly_legendclick is triggered. Here is an example:
library(plotly)
data(iris)
myPlot <- plot_ly(
x = ~Petal.Length, y = ~Petal.Width,
color = ~Species,
data = iris)
# Disable default click-on-legend behavior
myPlot <- layout(
myPlot,
legend = list(itemclick = FALSE, itemdoubleclick = FALSE))
# Add an event handler
onRender(
myPlot,
"function (el) {
const OPACITY_START = el._fullData[0].marker.opacity;
const OPACITY_DIM = 0.3;
el.on('plotly_legendclick', function (data) {
// Get current opacity. The legend bubble on which we click is given by
// data.curveNumber: data.curveNumber == 0 means that we clicked on the
// first bubble, 1 means that we clicked on the second bubble, and so on.
var currentOpacity = data.fullData[data.curveNumber].marker.opacity
if (currentOpacity < OPACITY_START) { // if points already dimmed
var update = { 'marker.opacity' : OPACITY_START }; // could also set to null
} else { // if points not already dimmed
var update = { 'marker.opacity' : OPACITY_DIM };
}
Plotly.restyle(el, update, data.curveNumber);
} );
}"
)
When a user clicks on a legend bubble, this code toggles the corresponding bubbles in the plot between "normal" and "dim" states.
To instead toggle the other bubbles in the plot -- that is, to modify the other traces -- a small modification will be needed. In particular, data.curveNumber is always the number of the trace that corresponds to the clicked bubble in the legend. To instead modify the other traces, we need to pass the other trace numbers to Plotly.restyle(), not the trace that is indexed by data.curveNumber. See the Plotly.restyle() documentation for more on this point.
I use the marching cubes to obtain the surface of a volume, which is actually vtkPolyData. Then, I want to visualize the vtkPolyData as triangulation lines (the first picture) rather than the surface rendering (the second picture).
My current code is：
surface = vtk.vtkMarchingCubes()
surface.SetInputData(vtkImage)
surface.ComputeNormalsOn()
surface.SetValue(0, 0.5)
surface.Update()
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(surface.GetOutputPort())
mapper.ScalarVisibilityOff()
renderer = vtk.vtkRenderer()
renderer.SetBackground(0.1, 0.2, 0.3)
renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(renderWindow)
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetRepresentationToWireframe()
actor.GetProperty().ShadingOff()
renderer.AddActor(actor)
renderWindow.Render()
interactor.Start()
It can success visualize the second picture. How can I get the first picture using the "surface"?
The SetRepresentationToWireframe() method already controls whether to show the polydata as wireframe or surface... so the question is not very clear to me.
Box2D/Farseer 2D physics has a useful component which draws a simple representation of the physics world using primitives (lines, polygons, fills, colors). Here's an example:
What's the best way to accomplish this in Unity3D? Is there a simple way to render polygons with fill, lines, points, etc.? If so, I could implement the interface of DebugDraw with Unity's API, but I'm having trouble finding how to implement primitive rendering like this with Unity.
I understand it'll be in 3D space, but I'll just zero-out one axis and use it basically as 2D.
In case you mean actually a debug box just displayed in the SceneView not in the GameView you can use Gizmos.DrawWireCube
void OnDrawGizmos()
{
//store original gizmo color
var color = Gizmos.color;
// store original matrix
var matrix = Gizmos.matrix;
// set gizmo to local space
Gizmos.matrix = transform.localToWorldMatrix;
// Draw a yellow cube at the transform position
Gizmos.color = Color.yellow;
// here set the scale e.g. for a "almost" 2d box simply use a very small z value
Gizmos.DrawWireCube(transform.position, new Vector3(0.5f, 0.2f, 0.001f));
// restor matrix
Gizmos.matrix = matrix;
// restore color
Gizmos.color = color;
}
you can use OnDrawGizmosSelected to show the Gizmo only if the GameObject is selected
you could also extend this by getting the box size over the inspector
[SerializeField] private Vector3 _boxScale;
and using
Gizmos.DrawWireCube(transform.position, _boxScale);
I would like to display the units in text for the values displayed on the colorbar. I have a colorbar added to my ILSurface and I'd like to show my units in text on the color bar along with the range.
Edit: I want to display text at the bottom of the color bar below the bottom tick just the one label.
I was able to get this to work this way
new ILColorbar()
{
Children = { new ILLabel("nm") {Position = new Vector3(.2f,.98f,0) } }
}
I have to say the Position coordinates are not very intuitive. I had to basically adjust the numbers by trial and error until it fit. I knew that the values range 0..1 so the X value was 1 at the bottom but I wanted it up from the border. And the Y value would need to be indented in some but I wasn't sure what was a good value but .2 works.
You can access the axis of ILColorbar and configure it in the usual way. Use the LabelTransformFunc on the ticks to set your own label text. You can use the default transform func and add your unit string.
Example:
var cb = scene.First<ILColorbar>();
cb.Axis.Ticks.LabelTransformFunc = (ind, val) =>
{
return ILTickCollection.DefaultLabelTransformFunc(ind, val) + "nm";
};
You can read more about the axis configuration here:
Axis Configuration
LabelTransformFunc in ApiDoc
Edit:
If only one label is needed, then add a new ILLabel object in ILColorbar group as follows:
new ILColorbar() {
new ILLabel("z(nm)") {
Position = new Vector3(0.5,1,0),
Anchor = new PointF(0.5f,0)
}
}
The ILColorbar area have the relative coordinates 0..1 over the width and the height of the color bar. So we set position x in the middle of the ILColorbar, and position y at the bottom.
The Anchor position is used as relative position in relation to the Position point.
ILLabel Documentation