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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:42:04 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:42:04 +0000 |
commit | 0d47952611198ef6b1163f366dc03922d20b1475 (patch) | |
tree | 3d840a3b8c0daef0754707bfb9f5e873b6b1ac13 /zenmap/radialnet/util/geometry.py | |
parent | Initial commit. (diff) | |
download | nmap-upstream.tar.xz nmap-upstream.zip |
Adding upstream version 7.94+git20230807.3be01efb1+dfsg.upstream/7.94+git20230807.3be01efb1+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'zenmap/radialnet/util/geometry.py')
-rw-r--r-- | zenmap/radialnet/util/geometry.py | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/zenmap/radialnet/util/geometry.py b/zenmap/radialnet/util/geometry.py new file mode 100644 index 0000000..109443b --- /dev/null +++ b/zenmap/radialnet/util/geometry.py @@ -0,0 +1,152 @@ +# vim: set fileencoding=utf-8 : + +# ***********************IMPORTANT NMAP LICENSE TERMS************************ +# * +# * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap +# * Project"). Nmap is also a registered trademark of the Nmap Project. +# * +# * This program is distributed under the terms of the Nmap Public Source +# * License (NPSL). The exact license text applying to a particular Nmap +# * release or source code control revision is contained in the LICENSE +# * file distributed with that version of Nmap or source code control +# * revision. More Nmap copyright/legal information is available from +# * https://nmap.org/book/man-legal.html, and further information on the +# * NPSL license itself can be found at https://nmap.org/npsl/ . This +# * header summarizes some key points from the Nmap license, but is no +# * substitute for the actual license text. +# * +# * Nmap is generally free for end users to download and use themselves, +# * including commercial use. It is available from https://nmap.org. +# * +# * The Nmap license generally prohibits companies from using and +# * redistributing Nmap in commercial products, but we sell a special Nmap +# * OEM Edition with a more permissive license and special features for +# * this purpose. See https://nmap.org/oem/ +# * +# * If you have received a written Nmap license agreement or contract +# * stating terms other than these (such as an Nmap OEM license), you may +# * choose to use and redistribute Nmap under those terms instead. +# * +# * The official Nmap Windows builds include the Npcap software +# * (https://npcap.com) for packet capture and transmission. It is under +# * separate license terms which forbid redistribution without special +# * permission. So the official Nmap Windows builds may not be redistributed +# * without special permission (such as an Nmap OEM license). +# * +# * Source is provided to this software because we believe users have a +# * right to know exactly what a program is going to do before they run it. +# * This also allows you to audit the software for security holes. +# * +# * Source code also allows you to port Nmap to new platforms, fix bugs, and add +# * new features. You are highly encouraged to submit your changes as a Github PR +# * or by email to the dev@nmap.org mailing list for possible incorporation into +# * the main distribution. Unless you specify otherwise, it is understood that +# * you are offering us very broad rights to use your submissions as described in +# * the Nmap Public Source License Contributor Agreement. This is important +# * because we fund the project by selling licenses with various terms, and also +# * because the inability to relicense code has caused devastating problems for +# * other Free Software projects (such as KDE and NASM). +# * +# * The free version of Nmap is distributed in the hope that it will be +# * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties, +# * indemnification and commercial support are all available through the +# * Npcap OEM program--see https://nmap.org/oem/ +# * +# ***************************************************************************/ + +import math + + +def is_in_square(point, half_side, center=(0, 0)): + """ + """ + x, y = point + a, b = center + + if a + half_side >= x >= a - half_side: + if b + half_side >= y >= b - half_side: + return True + + return False + + +def is_in_circle(point, radius=1, center=(0, 0)): + """ + """ + x, y = point + a, b = center + + if ((x - a) ** 2 + (y - b) ** 2) <= (radius ** 2): + return True + + return False + + +def atan_scale(point, scale_ceil): + """ + """ + new_point = float(10.0 * point / scale_ceil) - 5 + return math.atan(abs(new_point)) + + +def normalize_angle(angle): + """ + """ + new_angle = 360.0 * (float(angle / 360) - int(angle / 360)) + + if new_angle < 0: + return 360 + new_angle + + return new_angle + + +def is_between_angles(a, b, c): + """ + """ + a = normalize_angle(a) + b = normalize_angle(b) + c = normalize_angle(c) + + if a > b: + + if c >= a and c <= 360 or c <= b: + return True + + return False + + else: + + if c >= a and c <= b: + return True + + return False + + +def angle_distance(a, b): + """ + """ + distance = abs(normalize_angle(a) - normalize_angle(b)) + + if distance > 180: + return 360 - distance + + return distance + + +def calculate_short_path(iangle, fangle): + """ + """ + if iangle - fangle > 180: + fangle += 360 + + if iangle - fangle < -180: + fangle -= 360 + + return iangle, fangle + + +def angle_from_object(distance, size): + """ + """ + return math.degrees(math.atan2(size / 2.0, distance)) |