You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
Horizontal gradient on the kanvas.
Slightly improved the code, and also introduced a variable which is responsible for the rendering speed:
Changing the speed of visualization is done by updating the canvas not after each drawing of the line, but at intervals.
The size of the gap is calculated using arithmetic operation "remainder of division":
I have applied different colours here: I have applied a colour with transparency (alpha channel 255) to the background colour (alpha channel 128). I have a question - which formula is used to calculate the final pixel colour for COLOR_FORMAT_ARGB_RAW and COLOR_FORMAT_ARGB_NORMALIZE modes.
If you refer to the article Calculating resulting colour, the calculations do not match.
Where is it wrong: are the colour constants storing the wrong data or is the PrintFormat function malfunctioning?
Here's a script that outputs colours in integer form via PrintFormat:
Output result:
Whyis clrRed represented as0x000000FF and not0x00FF0000? Because red is C'255,0,0'.
Why isclrBlue represented as0x00FF0000 and not0x0000FF? Because blue is C'0,0,255'.
This is correct. It's just that ARGB has a different data storage format compared to Color.
The recording format should be the same: first the alpha channel (if there is one) then RGB. According to help type Color record blue through literals:
C'0x00,0x00,0xFF'// blue
i.e. in integer representation, blue colour (without alpha channel) should be written as: 0x0000FF. But the test script outputs the blue colour backwards:
It turns out that the colour is written backwards in the colour constants.
It turns out that colour is written backwards in colour constants.
With COLOR_FORMAT_ARGB_RAW, theTransparentLevelSet methodwith parameter "0" (full transparency) produces near-transparency, but clearly not full transparency.
COLOR_FORMAT_ARGB_RAW methodTransparentLevelSet with parameter "0" (full transparency) makes transparency close to full transparency but obviously not full transparency.
Clarification: residual transparency at transparency level "0" is only observed on x32. There is no residual transparency on x64:
Is this kanvas behaviour in COLOR_FORMAT_ARGB_RAW mode a bug or a feature of drawing in x32 and x64 systems?
Clarification: residual transparency at transparency level "0" is only observed on x32. There is no residual transparency on x64:
Is this kanvas behaviour in COLOR_FORMAT_ARGB_RAW mode a bug or a feature of drawing in x32 and x64 systems?