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nekromoff / arrogance-of-space

The Arrogance of Space Mapping Tool
https://cyklokoalicia.sk/arrogance/
GNU Lesser General Public License v3.0
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24%+15%=100%? (Unpainted areas) #16

Open DerLalo opened 1 year ago

DerLalo commented 1 year ago

I used this tool for a street in my neighbourhood. I took a few meters and painted them red and blue. The created image says: Cars (24%) Pedestrians (15%). What about the rest?

Aufstieg_arrogance

If I paint all the rest black, the result is Cars (11%) Pedestrians (7%) Dead space (82%). Aufstieg_arrogance2

So the must be an issue with unpainted areas! In my opinion, they should either be ignored, so the result for the first image should be Cars (62%) Pedestrians (38%). Or they should be handled as dead space, and the result would be the same as in the second example.

nekromoff commented 1 year ago

Indeed, this is the case. All squares are counted towards 100%, but if some are left unmarked, percentage is not calculated for them.

Automatic marking of everything unmarked as dead space probably wouldn't be correct. So for now I would leave it to a user to decide.

I am leaving this issue open, if somebody else can come with more ideas on how to address this.

On Wed, Jun 28, 2023, 09:55 DerLalo @.***> wrote:

I used this tool for a street in my neighbourhood. I took a few meters and painted them red and blue. The created image says: Cars (24%) Pedestrians (15%). What about the rest?

[image: Aufstieg_arrogance] https://user-images.githubusercontent.com/137991233/249394152-2558cbde-2b83-49f8-83b2-15ba25ac9763.png

If I paint all the rest black, the result is Cars (11%) Pedestrians (7%) Dead space (82%). [image: Aufstieg_arrogance2] https://user-images.githubusercontent.com/137991233/249394199-f4d6d3aa-1434-4010-ab59-79995ea65a08.png

So the must be an issue with unpainted areas! In my opinion, they should either be ignored, so the result for the first image should be Cars (62%) Pedestrians (38%). Or they should be handled as dead space, and the result would be the same as in the second example.

— Reply to this email directly, view it on GitHub https://github.com/nekromoff/arrogance-of-space/issues/16, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACBHPTILTT4YLNOLSQXZNBDXNPPODANCNFSM6AAAAAAZWURATE . You are receiving this because you are subscribed to this thread.Message ID: @.***>

DerLalo commented 1 year ago

OK, I found the bug: it's the eraser. I uploaded an empty, square picture, scaled to fit 10x10 tiles. In the first step, I marked 6 lines red. The result is correct, 100% Cars: square1

But if I delete one line, the result is 82% Cars: square2

So the erased tiles are still counted and not handled as untouched tiles!

nekromoff commented 1 year ago

Good catch! I might fix it at some point. Until then don't use the eraser tool :-)

On Tue, Jul 4, 2023 at 10:09 AM DerLalo @.***> wrote:

OK, I found the bug: it's the eraser. I uploaded an empty, square picture, scaled to fit 10x10 tiles. In the first step, I marked 6 lines red. The result is correct, 100% Cars: [image: square1] https://user-images.githubusercontent.com/137991233/250069279-387dff73-2372-472d-986b-6ad0e7c0e2eb.png

But if I delete one line, the result is 82% Cars: [image: square2] https://user-images.githubusercontent.com/137991233/250069386-cf846c2a-2820-4086-92d0-550bf1dd986b.png

So the erased tiles are still counted and not handled as untouched tiles!

— Reply to this email directly, view it on GitHub https://github.com/nekromoff/arrogance-of-space/issues/16#issuecomment-1619750552, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACBHPTI7CAAPDYOU3H6KB23XOPFUTANCNFSM6AAAAAAZWURATE . You are receiving this because you commented.Message ID: @.***>