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Kelompok 4:
Bintang,Akhsin &Vincen
 Dalam matematika, sebuah kurva adalah
suatu objek geometri yang merupakan satu-
dimensi dan kontinyu.
 Dalam grafika komputer, kurva dapat
dipresentasikan dengan metode interpolasi.
Suatu kurva parametrikC didalam bidang
adalah sepasang fungsi :
x = f(t), y = g(t) (pers. Parametrik)
yang memberikan x dan y fungsi kontinu
untuk t dalam interval tertentu, t bilangan
real (parameternya).
 Kurva Spline adalah kurva yang digambar secara fleksibel untuk
menghasilkan kurva yang smooth melalui titik-titik kontrolnya.
Untuk menjaga agar kurva tetap smooth maka diperlukan
kontinuitas di titik-titik kontrolnya.
 Kontinuitas orde-0 atau kontinuitas C0, titik koordinat kurva u2
sama dengan titik koordinat kurva u1 sehingga kurvanya bertemu.
Kontinuitas orde-1 atau kontinuitas C1, parametric turunan
pertama dari titik koordinat kurva u2 bertemu atau nilainya sama
dengan parametrik turunan pertama dari titik koordinat kurva di
titik u1 joint nya.
Kontinuitas orde-2 atau kontinuitas C2, turunana pertama dan
turunana kedua dari titik koordinat kurva u2 dan titik koordinat
kurva u1 bertemu di persilangannya.
 Bentuk Parametrik (Parametric form) yaitu
nilai dari setiap variabel untuk titik-titik pada
kurva terhadap variabel independen
υ (parameter)
Fungsi dalam koordinat 3D nya dapat
dituliskan :
x = x(u)
y = y(u)
z = z(u)
 Merupakan kurva di bidang yang bukan
merupakan grafik dari suatu fungsi. Jadi, elips
tidak dapat dinyatakan dalam bentuk
persamaan y=f(x). Namun, dengan
menggunakan parameter t, elips dapat
dinyatakan dalam persamaan parametrik
 X=f(x), y=g(t), dengan t anggota dari I, untuk
suatu interval I
 Super elips dikenal juga sebagai kurva
tertutup yang menyerupai elips, berpatok
dengan geometris sumbu-sumbu pada
simetri dalam bentuk yang berbeda.
Kel 4 - BAB 4.pptx

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Kel 4 - BAB 4.pptx

  • 2.  Dalam matematika, sebuah kurva adalah suatu objek geometri yang merupakan satu- dimensi dan kontinyu.  Dalam grafika komputer, kurva dapat dipresentasikan dengan metode interpolasi.
  • 3. Suatu kurva parametrikC didalam bidang adalah sepasang fungsi : x = f(t), y = g(t) (pers. Parametrik) yang memberikan x dan y fungsi kontinu untuk t dalam interval tertentu, t bilangan real (parameternya).
  • 4.  Kurva Spline adalah kurva yang digambar secara fleksibel untuk menghasilkan kurva yang smooth melalui titik-titik kontrolnya. Untuk menjaga agar kurva tetap smooth maka diperlukan kontinuitas di titik-titik kontrolnya.  Kontinuitas orde-0 atau kontinuitas C0, titik koordinat kurva u2 sama dengan titik koordinat kurva u1 sehingga kurvanya bertemu. Kontinuitas orde-1 atau kontinuitas C1, parametric turunan pertama dari titik koordinat kurva u2 bertemu atau nilainya sama dengan parametrik turunan pertama dari titik koordinat kurva di titik u1 joint nya. Kontinuitas orde-2 atau kontinuitas C2, turunana pertama dan turunana kedua dari titik koordinat kurva u2 dan titik koordinat kurva u1 bertemu di persilangannya.
  • 5.  Bentuk Parametrik (Parametric form) yaitu nilai dari setiap variabel untuk titik-titik pada kurva terhadap variabel independen υ (parameter) Fungsi dalam koordinat 3D nya dapat dituliskan : x = x(u) y = y(u) z = z(u)
  • 6.
  • 7.
  • 8.
  • 9.  Merupakan kurva di bidang yang bukan merupakan grafik dari suatu fungsi. Jadi, elips tidak dapat dinyatakan dalam bentuk persamaan y=f(x). Namun, dengan menggunakan parameter t, elips dapat dinyatakan dalam persamaan parametrik  X=f(x), y=g(t), dengan t anggota dari I, untuk suatu interval I
  • 10.  Super elips dikenal juga sebagai kurva tertutup yang menyerupai elips, berpatok dengan geometris sumbu-sumbu pada simetri dalam bentuk yang berbeda.