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Old 02-16-2006, 09:30 AM
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Sight Measuring Workshop #2 - All the Angles

This is the second in my series of threads on Sight Measuring!

I started this thread ages ago! So much has happened that I couldn't even begin to explain, but I was reminded of this series and really wanted to finish it!

In my first thread, I showed how to sight measure the horizontal and vertical measurements. This thread is to show a method that helps people determine the angles. Actually, it is just a way of making yourself more aware of the angle and therefore better able to transfer the same angle to your drawing.

Here’s a link to my first thread:

http://www.wetcanvas.com/forums/showthread.php?t=233000

Let's get started!
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Old 02-16-2006, 09:39 AM
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Re: Sight Measuring Workshop #2 - All the Angles

First off, just as you did in the earlier thread, check to see that you aren’t standing or sitting in a way that will throw off your sight measurements. Make sure that you are standing straight and can’t move unconsciously. Stretch out your arm with the elbow locked tight. Close one eye.




This stance should be familiar. Whether you are measuring verticals, horizontals or angles, you should be in this general position. One of the easiest ways to throw off your drawing is to be a little out of alignment in some way.
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Old 02-16-2006, 10:05 AM
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Re: Sight Measuring Workshop #2 - All the Angles

Now, align the pencil to the angle that you want to draw.

Carefully transfer this angle to your paper. Check it again to be sure that you copied it right.



Here, I am aligning my pencil to the bottom edge of the bricks on the porch. This makes it easier to see the angle and perspective of this important line.
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Last edited by bjs0704 : 02-16-2006 at 02:32 PM.
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Old 02-16-2006, 11:32 AM
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Re: Sight Measuring Workshop #2 - All the Angles

I sometimes use this angle measurement to determine the width of things.

I often check that I have the width of things correct by checking major points in that object. If I were drawing a bottle, I would check the angle between the top left shoulder and the bottom right shoulder. I would then check the width of the top right shoulder and the bottom left shoulder. Then, I double check it.

For some things, it helps to imagine a centerline and, measure the angle of each corner, from the center line.

(I'm using yabby's "wine or water" from the RIF and modifying it in photoshop to show you the point that I would be measuring if it were a still life that I was drawing.)

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Last edited by bjs0704 : 02-16-2006 at 03:46 PM.
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Old 02-16-2006, 11:35 AM
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Re: Sight Measuring Workshop #2 - All the Angles

Another method of measuring angle is to imagine the hands of a clock. Hold your pencil out horizontally (or vertically). Compare the angle of what you are drawing to the pencil. How many degrees difference is there? If it were the hand on a clock “What time would it be”?

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Last edited by bjs0704 : 02-16-2006 at 05:19 PM.
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Old 02-16-2006, 11:36 AM
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Re: Sight Measuring Workshop #2 - All the Angles

Sometimes, you can measure against a vertical or horizontal object that they know to be a true vertical or horizontal when you use the clock method. Walls, pillars, window sills or floorboards can be used this way. Be careful, though, make sure that your object really is horizontal or vertical.
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Last edited by bjs0704 : 02-16-2006 at 05:40 PM.
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Old 02-16-2006, 11:37 AM
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Re: Sight Measuring Workshop #2 - All the Angles

When drawing a curved object, it is often helpful to think of the curve as a series of straight lines instead of the curve. Then, you can check the angle of these straight lines and draw the curve.

("Lacy Pear" taken by SweetBabyJ from the Reference Image Library.)



I've added lines (in purple) to show one way of "straightening the curve".
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Last edited by bjs0704 : 02-16-2006 at 05:49 PM.
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Old 02-16-2006, 11:37 AM
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Re: Sight Measuring Workshop #2 - All the Angles

As you practice, try to draw -

a hallway with doors or a wall with windows (to practice getting basic angles in perspective)

a table with an a still life object on it (to get the angle of the table)

try drawing a bottle or vase, check the width by sight measuring the angle

Try drawing a curved object with sight measuring by simplifying the curve to straight lines.

Try using the “clock method”. It works well, if you try drawing a part of a room. (The couch in a living room would be good.)

Try the measuring off a “known vertical” such as a wall. (Drawing part of a room is a good choice for this method, too.)

Please join in, while I really can’t check you, I am eager to see how you do. It is fun to hear about people’s efforts.

Barb Solomon
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Old 09-25-2006, 05:38 AM
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Re: Sight Measuring Workshop #2 - All the Angles

Hi barb, that 'clock' method sounds like it would be very useful.
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Old 09-25-2006, 12:21 PM
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Re: Sight Measuring Workshop #2 - All the Angles

Thanks, June! It's good to know that someone can find my little series useful!

Barb Solomon
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