Vertex color in Blender - blender

I don't know why "COL" appears in DATA TAB as shown on the picture added to my post. I didn't vertex paint my model. I only added color through material tab.
Can I delete it?
Why does it appear?

Related

change wireframe background in blender 2.8

I am totally new to blender. Check out the following picture:
My coach changed cylinder to wireframe, so then I change my cylinder to wireframe, however the view is different:
My question: How do I change to wireframe view? My wireframe background is transparent but first in image is not transparent.
Can any one help? I'm using Blender 2.8
You can change between wireframe/solid/material/and render previews by pressing the z key and confirming your selection in the radial menu.
You may also find the options in the
overlay dropdown menu useful - located in the top right hand corner of the 3D viewport. Particularly the floor, grid and wireframe options.

Draw with mouse and save the drawn region as separate image

Please see following picture:
background picture
The image Abc in red color is the background picture, maybe preloaded on some control, for example a picturebox control.
The black rectangle region is drawn using mouse. What I want to achieve is to copy out the drawn region as separate image.
My goal is the winform will display each mouse drawing stroke until there is a closed region being formed or enclosed. That means a closing contact point need to be tracked.
Could you advise me on the key classes that I need to look into?

Merge a picture color in other picture using Adobe Illustrator

I want to merge the color of one picture in other picture. As the picture below is showing. I paste a picture on circle. But there is a clear distinction between the two pictures. I want to get rid of it. Is it possible?
You have a couple options:
1: You could make a Clipping Mask, use the pen tool and trace the object, once you have drawn a line around what you what removed from the background select your outline and your image. goto top menu item Object > Clipping Mask > Make. This will clip your image and hide the background.
2: The image your are using my be tough for step one. Try re-exporting the image as a PNG or GIF with a transparent background then open it in illustrator. You will need to either "open" from within ai or "open with" ai. Copy/paste will not keep the transparency depending on the tools you are using.
My guess is step two will be your easiest solution because of the shadow elements. Good luck!
-Added Edit-
3: Open the original image file and change the background hex value to match the final desired background. This solution is less valuable because you won't have the ability to edit or change your mind about the color while your working.

Adding Tick to ListView Items QT

I have a custom QAbstractListModel and I use it for ListView to show images. My question is how can I add red tick (as shown in the picture) on specific items without changing original image?

x and y coordinates of mouse location in Photoshop

How do I turn on the X and Y coordinates for the location of the mouse on screen?
I have Photoshop CC. I'm creating interfaces and would like to be able to know the location of my mouse.
Although I can't currently check as i don't have photoshop CC on this computer, from past experience if you go
Window -> Information
A palette should appear with the coordinates of the cursor in it.
Press F8 to open info palette. That will show your mouse position in x and y coordinates.
You can also press Ctrl + R to view the ruler. Then take the mouse to the top left corner and by dragging from there you can change 0,0 coordinates of x,y position to anywhere on canvas.
when you draw something like rectangle and draw with pressing space bar. It will show lively width height and x y coordinates as well in Photoshop CC
Position with guides and the grid
Guides and the grid help you position images or elements precisely. Guides appear as nonprinting lines that float over the image. You can move and remove guides. You can also lock them so that you don’t move them by accident.
Smart Guides help you align shapes, slices, and selections. They appear automatically when you draw a shape or create a selection or slide. You can hide Smart Guides if you need to.
The grid is useful for laying out elements symmetrically. The grid appears by default as nonprinting lines but can also be displayed as dots.
Guides and grids behave in similar ways:
Selections, selection borders, and tools snap to a guide or the grid when dragged within 8 screen (not image) pixels. Guides also snap to the grid when moved. You can turn this feature on and off.
Guide spacing, along with guide and grid visibility and snapping, is specific to an image.
Grid spacing, along with guide and grid color and style, is the same for all images.
Show or hide a grid, guides, or smart guides
Do one of the following:
Choose View > Show > Grid.
Choose View > Show > Guides.
Choose View > Show > Smart Guides.
Choose View > Extras. This command also shows or hides layer edges, selection edges, target paths, and slices.
Place a guide
If the rulers are not visible, choose View > Rulers.
Note:
For the most accurate readings, view the image at 100% magnification or use the Info panel.
Do one of the following to create a guide:
Choose View > New Guide. In the dialog box, select Horizontal or Vertical orientation, enter a position, and click OK.
Drag from the horizontal ruler to create a horizontal guide.
Drag to create a horizontal guide
Dragging to create a horizontal guide
Hold down Alt (Windows) or Option (Mac OS), and drag from the vertical ruler to create a horizontal guide.
Drag from the vertical ruler to create a vertical guide.
Hold down Alt (Windows) or Option (Mac OS), and drag from the horizontal ruler to create a vertical guide.
Hold down Shift and drag from the horizontal or vertical ruler to create a guide that snaps to the ruler ticks. The pointer changes to a double-headed arrow when you drag a guide.
(Optional) If you want to lock all guides, choose View > Lock Guides.
Move a guide
Select the Move tool , or hold down Ctrl (Windows) or Command (Mac OS) to activate the Move tool.
Position the pointer over the guide (the pointer turns into a double-headed arrow).
Move the guide in any of the following ways:
Drag the guide to move it.
Change the guide from horizontal to vertical, or vice versa, by holding down Alt (Windows) or Option (Mac OS) as you click or drag the guide.
Align the guide with the ruler ticks by holding down Shift as you drag the guide. The guide snaps to the grid if the grid is visible and View > Snap To > Grid is selected.
Remove guides from the image
Do one of the following:
To remove a single guide, drag the guide outside the image window.
To remove all guides, choose View > Clear Guides.
Set guide and grid preferences
Do one of the following:
(Windows) Choose Edit > Preferences > Guides, Grid, & Slices.
(Mac OS) Choose Photoshop > Preferences > Guides, Grid, & Slices.
For Color, choose a color for the guides, the grid, or both. If you choose Custom, click the color box, choose a color, and click OK.
For Style, choose a display option for guides or the grid, or both.
For Gridline Every, enter a value for the grid spacing. For Subdivisions, enter a value by which to subdivide the grid.
If desired, change the units for this option. The Percent option creates a grid that divides the image into even sections. For example, choosing 25 for the Percent option creates an evenly divided 4‑by‑4 grid.
Click OK.
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Work efficiently with Smart Guides
Smart Guides come in handy in several scenarios, such as the following:
Option (Mac)/Alt (Win) + Drag a Layer: When you drag a layer while keeping the Option (Mac) or Alt (Windows) key pressed, Photoshop displays reference measurement guides showing the distance between the original layer and the duplicate layer. This feature works with both the Move and Path Selection tools.
Distance between the layers: original and duplicate
Distance between the layers: original and duplicate
Path measurements: Photoshop displays measurement guides while you're working with paths. Measurement guides are also displayed when you select the Path Selection tool and then drag a path within the same layer.
Path measurements
Path measurements
Matched Spacing: When you duplicate or move an object, Photoshop displays measurement guides to visually indicate spacing between other objects that match the spacing between the selected object and its immediate neighbors.
Cmd (Mac)/Ctrl (Win) + Hover Over a Layer: You can view measurement guides while working with layers. With one layer selected, hover over another layer with the Cmd (Mac) or Ctrl (Windows) key pressed. You can use arrow keys in conjunction with this feature to nudge the selected layer.
Measurement guides while working with layers
Measurement guides while working with layers
Distances from the canvas: When you hold down the Cmd (Mac) or Ctrl (Windows) key while hovering outside a shape, Photoshop displays distances from the canvas.
Distances of a shape from the canvas
Distances of a shape from the canvas
Spacing between matched objects