I want to add surface selection feature via three.js library - object

I want to add surface selection or highlighter to my webgl codes. I want to highlight when i click to the surface. Is there anyone can help me about this issue?

Read about raycasting here:
That gets you the object/triangle... then you can attach some indicator to the clicked surface.
https://threejs.org/examples/?q=raycast

Related

up/down arrow adjustments in a spinbutton

How do I get an up/down arrow adjustmnet like in this image instead of the +/- adjustments. I didn't see anything the the spinbutton documentation addressing this.
You image is old school GTK (probably from GTK2). If you look at the widgets gallery from GTK3 and GTK4, you will see that the spin button has changed looks.
Looking at the different options in Glade, I found that GtkSpinButton inherits from GtkOrientable. You can set orientation to be either horizontal or vertical. I tried both options in Glade and neither gives the result you are looking for.
Vertical
Horizontal
In both cases, you have those -/+ you want to get rid of.
So to answer your question, sadly : no.

How to detect where on a sprite a mouse-click occurred on scratch

So I’ve been trying to make a target type game where you click on a target and it tells you how accurate you were and where you clicked each time. After a while I have run across an issue where I couldn’t find out where on the sprite I clicked the target on. I tried googling it but all that comes up is detecting when the sprite is clicked. If anyone can help me it would be very appreciated. Thank you.
I think this is what you want: Create a variable (I'll call it accuracy). Then create an event for "When this sprite clicked". Have it set your variable to "distance to mouse pointer". This will give you the distance from the mouse click to the center of the sprite.

In Fusion 360, how can I get a view which shows hollow areas?

For instance, I have a body with a hollow area which is not visible from the outside. What's a good way to view the whole body, visualizing all of the surfaces, especially when there are voids within the body? Is changing the opacity the only way? I was hoping there would be a wireframe view, but I haven't been able to find a way to toggle one, if it exists.
Also, to change the opacity, I have to turn the body into a component. Is there a way to do this without having to make a permanent modification like that?
Another way I've found is to use Section Analysis to see a cross section, but that's not great for getting a view of everything at once.
At the bottom of the view, there is a toolbar. Click on the monitor icon, then choose Visual Style, Wireframe in the menu:
Wireframe with Hidden Edges should be the most appropriate in your case.

MergEXT MergZXing layer and barcode not reading

Just started working with this awesome external but have a couple of questions.
When the control is evoked, is it always the top layer or can I have a background transparent image on top of it so I can frame the control nicely?
Also, my testing seems to read most Barcodes but when it comes down to reading Barcodes on hard drives, the control does not want to decode those.... Too dense of bar code pattern?
I am very impressed thus far with the ease of use of your externals. Makes we want to code more for mobile devices!
an overlaying transparent image is not possible, as far as i know.
but couldn´t you use
command mergZXingControlSetRect pLeft,pTop,pRight,pBottom
to define the rect of that scanner after creation
or
command mergZXingControlCreate pLeft,pTop,pRight,pBottom
to create the scanner control in the specified rect.
Set the rect smaller than the width and the height of the screen.
You could then use an underlying image, which is displayed outside of the scanner rect, to show the frame around scanner control. Did not test it myself, but i would assume that this should work.
Unfortunately the native controls in externals and the ones the engine provides are added as views on top of the LiveCode view. That means you can't intermingle LiveCode controls with them. One thing that some users have done is add a web view with a transparent background and a load a png image. If you create the barcode view first and the web view second then the web view will be on top.

How to add color picker in mfc?

i want be able to select any color i want, just like the attached pic.
yes i want to learn this c++ or mfc . I find it more powerfull . Could u explain to me exactly how to add it to my project. I also want the color iteslf and it code appers in picture box and textbox.
Thanks
Use CColorDialog class in mfc is used to pick the color from mfc
// Get the selected color from the CColorDialog.
CColorDialog dlg;
if (dlg.DoModal() == IDOK)
{
COLORREF color = dlg.GetColor();
}
This sample will popup dialog to select the color and after selecting the color and click ok button then color variable will contain the selected color.
Use this color in your application.
EDIT
You can customize your combo box or list box to add the color pick tool.
Refer this link : CodeProjectSample
CMFCColorDialog is what you seem to be looking for. To make it act like a drop-down, you'll need to position it below the down-arrow button (e.g., using MoveWindow).
Since you don't seem to have the MFC Feature Pack, check the Ultimate Toolbox at http://www.codeproject.com/KB/MFC/UltimateToolbox.aspx. Its Graphical User Interface classes have a Color Picker.
For Visual Studio versions prior 2008, you can use BCGSoft's color pikcer (http://www.bcgsoft.com). MFC color dialog is based on this one.
I had a similar problem with CMFCColorButton. I added the graphic resource with the ToolBox on my dialog design, but I could't assign a control variable because it did not recognize CMFCColorButton.
The answer was to include afxcolorbutton.h in the header of stdafx.h. Maybe you can fix it in the same way.
I hope this helps

Resources