rotate group of object relative to center without physic

Solar2D General Questions/Discussion
#1

Hi,

i want to rotate the objects in a display group around center point

assume this code:
 

local gp=display.newGroup( ) local line1=display.newLine( 1,1,100,100 ) local line2=display.newLine( 100,0,0,100 ) gp:insert( line1 ) gp:insert( line2 ) gp.anchorX=.5 gp.anchorY=.5 gp:rotate( 90 )

but this group does not rotate relative to center point.I want to move group relative to red point like below image :

Screen%20Shot%202017-07-14%20at%207.56.0

#2

Do display groups have anchors? For some reason I think not.

**UPDATE** I should have asked, “Do they respect anchors.”  By default, the answer is, "No."

#3

Just place ‘centered’ objects at 0,0 in the group and move the group to the center of the screen.

Then rotate

#4

no they have default anchor(0.5)

I  did not get what you mean

Thanks

#5

Regardless of whether they have a value, groups do not respect anchors.

#6 
local gp = display.newGroup( ) gp.x = display.contentCenterX gp.y = display.contentCenterY local line1 =display.newLine( gp, -150,-150,150,150 ) line1.strokeWidth = 2 local line2 =display.newLine( gp, 150,-150,-150,150 ) line2.strokeWidth = 2 display.newRect( gp, 0, 0, 40, 40) transition.to( gp, { rotation = 360, time = 5000 }) 

Try this code to see what I mean by my earlier suggestion

#7

Do display groups have anchors? For some reason I think not.

**UPDATE** I should have asked, “Do they respect anchors.”  By default, the answer is, "No."

#8

Just place ‘centered’ objects at 0,0 in the group and move the group to the center of the screen.

Then rotate

#9

no they have default anchor(0.5)

I  did not get what you mean

Thanks

#10

Regardless of whether they have a value, groups do not respect anchors.

#11 
local gp = display.newGroup( ) gp.x = display.contentCenterX gp.y = display.contentCenterY local line1 =display.newLine( gp, -150,-150,150,150 ) line1.strokeWidth = 2 local line2 =display.newLine( gp, 150,-150,-150,150 ) line2.strokeWidth = 2 display.newRect( gp, 0, 0, 40, 40) transition.to( gp, { rotation = 360, time = 5000 }) 

Try this code to see what I mean by my earlier suggestion