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Last seen: August 1, 2026 2:11 pm
Mapman,"I guess we need to go out in public dressed up like a corporate clown in suit and tie to put wood in the ground."That's funny right there! :-D...
What Distance Gets Scaled?Martin,Thanks. With help from this forum and the great graphics in the SPCS PDF that I got from GeeOddMike, I'm slowly putti...
What Distance Gets Scaled?Thanks all for the most excellent responses.Do you apply the Grid Scale Factor to distances on the Projection Grid to get Gr...
Martin,No, I mean doesn't the direction matter? If the scale is different at any point on the projection, I'd think that direction was critical to det...
GB,"...'infinitesimal lines', 'very short lines', and 'small areas'."Thank you. I will re-attack page 17 tomorrow.Dave
Martin,"On the map, the scale factor will still vary from place to place but will be constant (at a given place) no matter which direction one is faci...
Chowderhead Gets ItMelita,I re-read every post on the thread. Carefully. Slowly. I even moved my lips as I was reading. Everyone here was trying to te...
Here's my drawing...Shawn,I hardly ever give up. The only two things I ever gave up on as completely unknowable are Einstein's Theory of Relativity, a...
Here's my drawing...Thanks for trying, Dave. I need to go read and think awhile. I will re-read and consider your words.Dave
GB,OK, so the term Central Parallel is only used when it's a Single-Parallel Lambert. I was wrongly using the term to describe the halfway parallel be...
Here's my drawing...Dave,"As you go east or west along a line of latitude from the central meridian the northings increase."You've just pulled the rug...
GB,"...you simply lay the rectangular grid on top of the piece of pie..."Whenever someone uses the word "simply", I know I'm in trouble. I'm fairly de...
Here's my drawing...Dave,Nice drawing. To which point's coords would the departure and latitude be added to?Would (n,e) be adjusted to the intersectio...
Melita,"...conformal always means local shape (aka angle) is maintained."I wondered how shape could be conserved in a projection. Thanks for tying the...
Melita,Thank you! That makes sense that the angles are conserved, but not distance, direction and area.Dave
GB,The meridians won't converge if the Standard Parallels projected to Grid are perpendicular to the Northing Axis. So it wouldn't look like a huge sl...
Shawn,Do the projected meridian lines that converge at the point of the dunce cap coincide with the meridian lines that hug the globe and converge at ...
GOM/DMM,This is reasonable and understandable:Here's where my grasp suffers:The Central Parallel MUST be perpendicular to the Northing Axis in order t...
Melita,Thanks for the link.In order to make a State Plane Grid with a Lambert Conformal Projection, the area above the Central Parallel has to be "exp...
GOM/DMM,Thanks for the link. Heading there now. I'll report back.Dave