Web and "Diametrically Opposed Points"

[zean]

I need a RAW ruling on this for Pathfinder Society.

Web says "Web creates a many-layered mass of strong, sticky strands. These strands trap those caught in them. The strands are similar to spiderwebs but far larger and tougher. These masses must be anchored to two or more solid and diametrically opposed points or else the web collapses upon itself and disappears. Creatures caught within a web become grappled by the sticky fibers. Attacking a creature in a web doesn't cause you to become grappled."

So... radiating 20 feet outward, the diameter of the web would be 40 feet (8 squares).

If I cast web, and the room is, say, empty except for opposing characters, can I simply cast the web upon the ground, and use the ground as the opposing points?

Also, let's say we're in a small room. Let's say I cast the web radiating from the back of the room, such that it will hit the enemies, but not myself. Let's say the room is a 6 by 6 square (30 feet by 30 feet). Will this work, attaching the web to the walls, or will the web simply fall apart?

[wraithstrike]

I think the intent is to anchor at two opposing points. Two columns would work. The ground and ceiling should work. An example of diametrically opposed points according to my understanding would be two trees used to support a hammock.

[Kryzbyn]

Yes. The wording is there to prevent people from casting web into open air and snagging flying creatures. If you cast in on the ground, in a room or cavern with walls, that's fine. It just has to have something to anchor to.

[Warren Specter]

Diametrically Opposed

Two points directly opposite each other on a circle or sphere. More formally, two points are diametrically opposed if they are on opposite ends of a diameter.

So then could you not say point A on the floor and make point B directly opposite it and that count? If not then I see it being more like a wall having to be stretched across a hallway or between two columns, and how do you catch people in its area of effect then?

[Ravingdork]

I always wondered if two characters or creatures could count as the two diametrically opposed services. :P

[Starglim]

Warren Specter wrote:

So then could you not say point A on the floor and make point B directly opposite it and that count? If not then I see it being more like a wall having to be stretched across a hallway or between two columns, and how do you catch people in its area of effect then?

Those points are not opposed, as they're on a common plane.

Two columns work, but the web can only appear in the line between them rather than its full area. Floor and ceiling work if the ceiling is 40 feet or less high, edit: but may not support the full area if more than 10 feet.

Creatures are not solid supports.

zean wrote:

Also, let's say we're in a small room. Let's say I cast the web radiating from the back of the room, such that it will hit the enemies, but not myself. Let's say the room is a 6 by 6 square (30 feet by 30 feet). Will this work, attaching the web to the walls, or will the web simply fall apart?

Again, this partly works. Place your 20-foot-radius template in the room. Any part of the web that has opposed walls to support it appears, the rest collapses. edit: I've just tried it - the template contains a 30' x 30' square, so you can fill as much of this room as you choose. If centred on the back wall, it extends in 15 feet.

[Sah]

Starglim wrote:

Those points are not opposed, as they're on a common plane.

By that logic the spell is useless. No matter what if you have two points they will share a common plane. If its going from the bottom quarter of this column to the top quarter of that column, you can draw a straight line between the two and extrapolate a common plane.

Having a common plane does not preclude being diametrically opposed. The top right corner of a square and the bottom left corner of the square are diametrically opposed and still share a common plane.

[Lopke]

This has been used before on flying creatures by targeting their wings (if they fly using appendages), rather than the 'open air'.

Are wings diametrically opposed?

[digitalpacman]

I still don't get this. Can anyone answer this simple question:

"Can it be cast on the open ground."

I say no.

[Ravingdork]

Open ground? No, not unless there are trees and/or walls nearby.

[Vod Canockers]

A more interesting question is: If I cast Web to span a pit, can I use it as a bridge to cross the pit?

[Lamontius]

i once saw a comic someone drew of 'why spiderman doesn't live in Kansas'

and it was just spiderman walking along looking real sad in a perfectly flat field, shooting half-hearted webs at the ground and kicking a can

apply this new knowledge to this situation as you see fit

[VRMH]

Ravingdork wrote:

Open ground? No, not unless there are trees and/or walls nearby.

There's nothing in the spell description about the web having to be upright. Pick two points on the ground, cast web between them, and you should get a web-carpet.

[digitalpacman]

VRMH wrote:

Ravingdork wrote:

Open ground? No, not unless there are trees and/or walls nearby.

There's nothing in the spell description about the web having to be upright. Pick two points on the ground, cast web between them, and you should get a web-carpet.

@VRMH

This doesn't make sense because the web gives cover. A floor of web does not give cover.

This spells intention, however it is worded, is to create a "forest" of web, and if it cannot then the section that cannot establish this hold folds into itself.

If you wanted to allow someone to make a "floor" of web, it would make more sense for it to apply entangle, not grapple, still act as difficult terrain, but also not provide cover.

That's how I'd rule it anyway. Having your feet stuck a little to the ground is much less worse than having to walk through random strands going every which way.