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#1
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Help with the slider
I'm having trouble using the slider to change the speed of my viewpoints movement. While i'm moving i want to be able to use the slider to increase or decrease my movement speed. How can i do that?
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#2
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What are you using to move around?
Just grab the sliders value pos = slider.get() Multiply by some movement speed to make the value larger than 0 to 1 Set the speed equal to the newly calculated rate/force/speed/etc.. you are using to move around the environment with. |
#3
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Here's the code i have so far. I'm not sure how i should have my move_speed increase and decrease with the slider
Code:
MOVE_SPEED = 60 TURN_SPEED = 60 sliderPanel = vizinfo.InfoPanel(text=None, icon=False) slider = sliderPanel.addLabelItem('Speed', viz.addSlider()) slider.set(0) def mySlider(pos): ???? ???? vizact.onslider(slider,mySlider) def updatecar(): #move view forward and backward if viz.key.isDown(viz.KEY_DOWN): view.move([0,0,MOVE_SPEED*viz.elapsed()],viz.BODY_ORI) if viz.key.isDown(viz.KEY_UP): view.move([0,0,-MOVE_SPEED*viz.elapsed()],viz.BODY_ORI) #rotate body of view left and right if viz.key.isDown(viz.KEY_RIGHT): view.setEuler([TURN_SPEED*viz.elapsed(),0,0],viz.BODY_ORI,viz.REL_PARENT) elif viz.key.isDown(viz.KEY_LEFT): view.setEuler([-TURN_SPEED*viz.elapsed(),0,0],viz.BODY_ORI,viz.REL_PARENT) vizact.ontimer(0,updatecar) |
#4
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For the easy way out, you can read the state of the slider in the updateCar method.
If you multiply the movement speed by the slider value, it will allow you to scale between 0 and your max speed, which is 60 in this case. view.move([0, 0, MOVE_SPEED*slider.get()*viz.elapsed()], viz.BODY_ORI) Do this for each movement call you make. You are now scaling the speed of the car by the amount of time since the last update and the value of the slider. Last edited by shivanangel; 03-16-2015 at 11:13 AM. |
#5
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that worked great! thanks alot for your help!
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#6
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Is there a way to show your speed on the screen as it's changing?
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#7
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Create a text object on the screen.
Look up text node basics in the Vizard help file. Grab the value and set the text equal to it. |
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