"ScaleFactor" and "EffectiveScaleFactor"

[Browning_Zed]

If the vlax-dump-object function is applied to the block's vla-object, the following properties will be found:
XEffectiveScaleFactor
XScaleFactor
YEffectiveScaleFactor
YScaleFactor
ZEffectiveScaleFactor
ZScaleFactor
I would like to know what is the difference between ScaleFactor and EffectiveScaleFactor.

[calderg1000]

Saludos  @Browning_Zed 

En la figura se ha insertado el bloque con una escala de inserción en el eje X=1.0 , Y=1.5
Luego se ha escalado con el comando SCALE=2,-> XEffectiveScaleFactor = 2.0
XScaleFactor = 2.0,
YEffectiveScaleFactor = 3.0
,YScaleFactor = 3.0

I have done several tests and I could conclude that they are always the same.

[ВeekeeCZ]

Here we go, not the same.

;   XEffectiveScaleFactor = 1.0
;   XScaleFactor = 0.2
;   YEffectiveScaleFactor = 1.0
;   YScaleFactor = 0.2
;   ZEffectiveScaleFactor = 1.0
;   ZScaleFactor = 0.2

Here is a hint.

[Browning_Zed]

Thanks for the help. It seems I figured it out.

"EffectiveScaleFactor" is the actual scale of the block, and "ScaleFactor" is the ratio of block units to drawing units.
For example, if
block units: millimeters
drawing units: meters
and "EffectiveScaleFactor" = 2000, then
"ScaleFactor" = 2 (i.e. 2000/1000)

[ВeekeeCZ]

Not sure whether there is some relation to the unit setting.

I see that EffectiveScale is the scale without the annotation scale taken into account. So it's a "static" scale.

ScaleFactor is the EffectiveScale with an annotation scale taken into account if the block is annotative. It is a "current" real scale.

[Browning_Zed]

Yes you are right. This is true for annotative blocks, but if the block is NOT annotative then the annotation scale has no effect on the ScaleFactor parameter, in which case the parameter will be relative to the ratio of block units and drawing units

(also: not sure, but maybe this parameter somehow refers to the variable "insunits").

[ВeekeeCZ]

These variables only affect upon inserting blocks. Once they are in your drawing and you scale them somehow later... there is no more relation between the current block scale and block units or drawing units (whatever that means). 

[calderg1000]

Regards @Browning_Zed 

Thanks for the information, it is true in the image I show a block created in mm and inserted in a drawing in meters. I will review what happens with the annotative scales.