IrfanPaint Support Thread

[MItaly]

- The inch/mm values are not quite precise (at least not on my computers). I know the display drivers are not delivering accurate values (I expect you are using HORZSIZE). So it would be good to offer a possibility to calibrate the values (i.e. by entering a DPI or DPM value for the display). For sure in the moment you can add new units and calculate the right values, but ;-)

I use the DPIs provided by IrfanView for the image. If they are not correct you can always correct them in the normal way (press I and set the new values).

- To get the measuring results on the IP toolbar and not in a modal dialog would be fine

I don't know where to put them on the toolbar... maybe I could use a modeless dialog.

- A mode which respects the dpi of the bitmap plus the current zoom...

What do you mean?

[matera]

It already "respects" the dpi, as far as I can see. Very nice, and very handy.

[Sam_Zen]

2 Mitaly
A bit confused about your DL links, because it's still about IV 4.11 and 4.12, while it's 4.20 in the meantime.

[impdf]

I use the DPIs provided by IrfanView

You are right, I guess I was misleaded because the image dpi were near to the screen dpis.

All fine.

[Bhikkhu Pesala]

What do you mean?

My guess is that it means to measure screen pixels rather than image pixels.

What does "Annula" mean? Is that Italian for "Cancel"? See the dialogue when adding a new unit.

I don't know what I would use the measuring tool for, but I wonder if we need any decimal places if we're measuring pixels?

[impdf]

I don't know what I would use the measuring tool for

If you are looking to a map or a construction plan then this is a nice feature. OK the dpi values of the image are not really of interest in this case.

If I could do something like:

Select measure tool.

Left click to define a starting point, dragging the mouse to end end point, shift release mouse. A form pops up showing me the just measured pixels and an input field where I can enter a value and a unit name which will be connected to this amount of pixels. (Like 78px is 8.34harry).

From now on a tracking tooltip shows the distance calculated from the values above during measurement or even better during line drawing operations too.

[Bhikkhu Pesala]

Before implementing this, you should look at FastStone Capture. That has an onscreen measuring ruler, which can be either horizontal or vertical. To measure from point to point (diagonally), a line is drawn, with the measurement in pixels shown as a dynamically changing tooltip at the end of the line. A Zoom window lets the user position the start and end point of the measurement line precisely.

[impdf]

Before implementing this, you should look at FastStone Capture.

Yeah, looks nice. Especially if the tooltip could show also different units as I proposed. Zoom is for the pixel guys ;-) I would not need it. Maybe the diagonal measurement gives also a reason for rational pixels.

Because we are talking about measurement, once I implemented an on screen ruler (more to test windows feature like transparency and look through). If someone likes it we can put it on the web.

[MItaly]

2 Mitaly
A bit confused about your DL links, because it's still about IV 4.11 and 4.12, while it's 4.20 in the meantime.

I will correct it ASAP.

What does "Annula" mean? Is that Italian for "Cancel"?

Yes, it is. I forgot to change it to Cancel.

If you are looking to a map or a construction plan then this is a nice feature. OK the dpi values of the image are not really of interest in this case.

If I could do something like:

Select measure tool.

Left click to define a starting point, dragging the mouse to end end point, shift release mouse. A form pops up showing me the just measured pixels and an input field where I can enter a value and a unit name which will be connected to this amount of pixels. (Like 78px is 8.34harry).

You can actually do something similar. Do a normal measurement, select the base unit for the new unit and click "Create new unit".

From now on a tracking tooltip shows the distance calculated from the values above during measurement or even better during line drawing operations too.

Good suggestion.

Before implementing this, you should look at FastStone Capture. That has an onscreen measuring ruler, which can be either horizontal or vertical. To measure from point to point (diagonally), a line is drawn, with the measurement in pixels shown as a dynamically changing tooltip at the end of the line. A Zoom window lets the user position the start and end point of the measurement line precisely.

It seems to me a bit too complicated, but I can try to make something like that.

[Sjef]

Ruler in IrfanPaint

You mean something like this? (see attachment)

[impdf]

You mean something like this? (see attachment)

No transparency, and a little bit limited in resizing and rotating.

Anyway, no external tool can beat an embedded solution in most cases.

[Bhikkhu Pesala]

Resize Selection from the Centre

This post in Feature Requests asks to retain the centre of a selection as well as its aspect ratio. I wonder if IrfanPaint's selection tool can do this as the code for the rectangle already retains the centre with control.

To be consistent with its other tools, IrfanPaint would have to retain the aspect ratio of the selection with Shift, and maintain the centre with Control.

Drawing a new selection with Shift would have to make a square selection, while resizing an existing selection with Shift would have to retain its aspect ratio.

[MItaly]

The so-called "selection tool" has no control on what IrfanView does, so this feature request is definitely for Irfan.
BTW, I'm working to add a sidebar to IrfanView to contain a zoom of the zone under the cursor and tool-specific controls (e.g. the settings for the arrow line when this tool is selected, the current measure when the user is dragging with the measurement tool); see attachment.

[Sam_Zen]

Hmm. Quite a confusing picture to my little brain..

[impdf]

BTW, I'm working to add a sidebar to IrfanView to contain a zoom of the zone under the cursor and tool-specific controls (e.g. the settings for the arrow line when this tool is selected, the current measure when the user is dragging with the measurement tool); see attachment.

Wow, but do not spent to much time of your vacation for this ;-)

Did you already talk with Irfan that you would like to split the main window of Irfanview? Maybe you should start with an additional toolwindow or extend the tool selector.